validade dos modelos us ado singles
TRANSCRIPT
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ACCOUNTING HORIZONSVol. 18, No. 4
December 2004pp. 221-240
What Valuation Models Do Analysts Use?
Efthimios G Demirakos, Norman C. Strong, and Martin Walker
SYNOPSIS: This paper adopts a structured positive approach to explaining the valuationpractices of financial analysts by studying the valuation methodologies contained in 104
analysts' reports from international investment banks for 26 large U.K.-listed companies
drawn from the beverages, electronics, and Pharmaceuticals sectors. We provide a
descriptive analysis of the use of altenative valuation models focusing on the value-
relevant attributes that analysts seek to forecast and the methodologies analysts use to
convert the forecasts into estimates of firm value. We postulate and test a number of
hypotheses relating to how the valuation practices of analysts vary systematically across
industrial sectors. We find that: (1) the use of valuation by comparatives is higher in the
beverages sector than in electronics or Pharmaceuticals; (2) analysts typically chooseeither a PE model or an explicit multiperiod DCF valuation model as their dominant
valuation model; (3) none of the analysts use the price to cash flow as their dominant
valuation model; and (4) contrary to our expectations, some analysts who construct
explicit multiperiod valuation models still adopt a comparative valuation model as their
preferred model. We believe the study's findings are important for increasing our
understanding of the valuation practices of financial analysts. The study also provides a
basis for further research that tests a richer and more detailed set of hypotheses.
Data Availability: A list identifying the sampled analysts' reports is available from the
authors. The reports themselves are publicly available from the Investext database.
INTRODUCTION
valuation theorists have studied the theoretical properties of several valuation
frameworks, and some authors use these theoretical properties to produce normative
arguments in favor of particular frameworks. Penman (2001) advocates residual income
valuation (RIV), in preference to discounted cash flow (DCF). Copeland et al. (2000)
recommend using either the DCF model or the RIV model.' These authors assert that
DCF is most widely used in practice, but that RIV is gaining in popularity. They also note
that both methods, properly applied, result in the same
Efthimios G Demirakos is a Lecturer at Lancaster University; Norman C. Strong and
Martin Walker are Professors at the University of Manchester.
The paper has benefited substantially from the comments of two anonymous referees and
from the comments and advice of the Associate Editor, Stephen Baginski. The authors
acknowledge the comments of Miles Gietzman, Ken Peasnell, Peter
Pope, Theodore Sougiannis, and participants at the Spanish Joint Accounting and Finance
2003 Conference. Professor Demirakos acknowledges a WUN scholarship and a Ph.D.
grant from the Propondis Foundation. Copeland et al. (2000, 131) refer to these as the
enterprise DCF model and the economic profit model.
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valuation, and suggest that "the choice is mostly driven by the instincts of the user."
Palepu et al. (2000) adopt a balanced position; they note that properly constructed RIV
and DCF models lead to identical valuations, but acknowledge that the preference for one
approach over the other may depend on the ease of access to acceptable proxies for the
model constructs.
Penman (2001), Copeland et al. (2000), and Palepu et al. (2000) all prefer explicit
multiperiod valuation models based on either discounted cash flows or discounted
residual income rather than valuations based on single-period comparatives. The
theoretical superiority of multiperiod valuation models stands in contrast to the evidence
on valuation models used in practice. Barker (1999), for example, reviews and
summarizes previous research on the valuation models used by professional investors or
financial analysts. The most consistent findings are, first "that the [price-earnings ratio]
is of primary importance," and second "that [DCF] models, technical analysis, and beta
analysis are of little practical importance to investment decisions" (Barker 1999,197). In
his own survey of U.K. analysts and fund managers. Barker (1999) fmds that both groups
rank the PE model and the dividend yield model as the most important, and both groups
rate the DCF and dividend discount models as unimportant. Barker's findings on the
importance of PE multiples support thresults of Arnold and Moizer (1984) and Moizer
and Arnold (1984) for the U.K., Pike et al. (1993) for Germany and the U.K., and Block
(1999) for the U.S., all of whom investigate the valuation models used by analysts using
survey-based approaches.
Barker (1999) and the prior research he reviews are based on interviews and questionnaire
surveys of investment analysts and fund managers. To overcome some of the subjectivity
problems associated with interview-based research,^ we adopt an altemative researchdesign based on a content analysis of analysts' equity research reports. This approach
complements the results of theabove studies with evidence on the equity valuation models
that analysts use in practice. Govindarajan (1980), Previts et al. (1994), and Rogers and
Grant (1997) for the U.S., and Breton and Taffler (2001) for the U.K. also employ content
analysis, but they focus on fmaneial disclosure issues and the general information needs
of analysts. We differ from these studies principally in our explicit focus on the specific
valuation models analysts use, along with any other models or frames of reference they
bring to the specific task of valuation.
Bradshaw (2002) studies the content of 103 U.S. analysts' reports to identify how analysts
justify their stock price recommendations. He finds that valuations based on PE multiples
and expected growth are more likely to be used to support favorable recommendations,
while qualitative analysis of a firm's fundamentals is more likely to be employed to justify
less favorable recommendations.
He recommends further research to compare analysts' reports both within and across
industries.
Our study complements and extends Bradshaw (2002). First, we provide more detail
about the particular valuation models analysts use.^ Second, and crucially, we advance
and test specific hypotheses about the valuation model choices of analysts. In particular
we test hypotheses about how valuation methodologies vary across industrial sectors.
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The next section explains our methodology and theoretical framework, and it explains the
hypotheses that we use to guide our evaluation of analysts' reports. We then describe our
data source, the principles we use in selecting analysts' reports for inclusion in the study,
and the criteria we apply in scoring the reports in our sample. The next section reports our
findings on the frequency of use of alternative valuation models, presents formal tests of
our hypotheses, and offers further sensitivity analyses of our empirical results. Two
appendices briefly discuss the properties of two new practical valuation approaches
uncovered in our study of financial analysts' valuation practices.
METHODOLOGY AND THEORETICAL FRAMEWORK
A Structured Content Analysis
We draw on standard discussions of valuation concepts and models to establish a
structured framework for recording the content of analysts' reports and for generating
testable hypotheses about how the content of reports varies according to the nature of the
company analyzed. The conceptual framework of this paper is influenced primarily by
Penman (2001), with additional insights drawn from Palepu et al. (2000) and Copeland et
al. (2000). Penman (2001, 11) introduces a five-step process of fundamental analysis.
1) Knowing the business (strategic analysis).
2) Analyzing information (accounting and nonaccounting information analysis).
3) Specifying, measuring, and forecasting value-relevant payoffs.
4) Converting forecasts to a valuation.
5) Trading on the valuation.
The main focus of this paper is on the value-relevant attributes that analysts seek to
forecast and the methodology analysts use to convert their forecasts into firm value, i.e.,steps 3 and 4 of Penman's process.
Initially we anticipated finding three main types of valuation analysis: some form of
single period comparative or benchmark valuation (such as PE multiples), valuation via a
finite horizon multiperiod DCF model, and valuation via a finite horizon multiperiod RJV
model. The latter two models figure prominently in Palepu et al. (2000). Penman (2001)
focuses most attention on implementing the RIV model, while Copeland et al. (2000)
focus on the DCF model. All three sources mention the widespread practical use of
single-period comparative valuation techniques, although they all view such techniques as
low-cost simplifications that are likely to lead to less accurate valuations than a full
implementation of either the DCF or the RIV models. Penman (2001) is
particularly scathing of valuation by PE ratios. In our empirical work, we find evidence of
all three forms of valuation model. Another form of valuation practice we expected to
encounter was an attempt to use option pricing models to value future growth
opportunities independently of the valuation of assets in place. However, we encounter
only limited use of these approaches.
During the course of our empirical work, several valuation methods and themes emerge to
a more significant extent than anticipated. As detailed below, various analysts provide
valuation arguments based on hybrid value creation indicators. These are not complete
valuation models but are deployed as partial analytical support for a valuation "case."Industry Sectors
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Our study focuses on three industries: beverages, electronics, and Pharmaceuticals
chosen intentionally to give potential variation in analysts' valuation practices. To confirm
the differences in industry fundamentals and as background to our empirical hypotheses.
Table 1 reports growth and volatility characteristics for our three sectors. For each sector,
we report the median and interquartile range for annualized sales growth, the volatility of
earnings changes, the ratio of R&D to Sales, and the ratio of market to book value of
equity over the period 1997-2001. Comparing beverages with
Pharmaceuticals shows that the former has lower and more stable growth, lower volatility
of earnings changes, much lower R&D to Sales, and lower and more uniform market to
book ratios. On most of the indicators, electronics lies between beverages and
Pharmaceuticals.
Empirical Hypotheses
Our paper adopts a structured positive approach to the study of valuation practices. This
requires us to postulate hypotheses that we can test through this methodology. For this
paper, we develop four specific hypotheses related to the value-relevant attributes that
analysts forecast and the methodologies they use to convert their forecasts into firm value.
TABELA
Our first hypothesis concerns the choice between valuation based on industry or sector
single period comparatives and valuation using explicit multiperiod valuation models.
The prior research discussed above finds that valuation by PE comparatives is the most
pervasive form of valuation model. This approach could yield a good first approximation
for industries that have:
fairly uniform and stable growth; costs of capital, accounting methods and capital structures that are comparable across
companies;
and
transitory earnings items that can be identified and excluded from the analysis.
In such instances, the simplicity of the PE approach may be attractive to analysts.* A
similar argument applies to other methods of valuation by single-period comparatives that
we identify in our study (for example, those based on single-period amounts of sales, cash
flow, or book values).
Given our results in Table 1, beverages is a sector characterized by fairly uniform and
stable growth where valuation by single-period comparatives might yield a reasonable
first approximation, while electronics and pharmaceutical are sectors for which the ideal
conditions for valuation by comparatives are much less likely to hold. This gives rise to
the following hypothesis.
HI: Use of valuation by single-period comparatives is higher in the beverages sector
than in electronics or Pharmaceuticals.
Second, we are interested in why analysts choose accruals-based accounting valuation
constructs over cash-fiow-based constructs. Note that this choice operates within both the
single-period comparative valuation and the multiperiod valuation sets of models. We
first consider the choice between cash-flow-based and residual-income-based multiperiod
models.
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Multiperiod valuation models can be expressed in terms of projected cash flows, in the
case of DCF models, or in terms of initial book value and projected abnormal earnings in
the case of the RIV model. Theoretically the two techniques are equivalent. Since both
techniques require forecasts of future amountseither residual earnings for RIV or cash
fiows for DCFease of use does not seem to favor one method over the other.
In making the choice between RIV and DCF, analysts will consider which technique theyare most familiar with, which technique their clients are most comfortable with, and the
extent to which the published accounting information of the firm can be used as a credible
starting point for the analysis. DCF models have a long history of use relative to RIV and
have been taught extensively in Finance courses. Thus, DCF is in essence a default. For
analysts to pick RIV over DCF, they have to be confident that the published accounting
information captures the essence of the business.The question to consider is why and how
the confidence of analysts in the ability of accounting to faithfully represent the value
generation processes ofthe business might vary across sectors.
A number of authors, notably Lev (2001), have pointed out that accounting is relatively
strong in valuing tangible assets and relatively weak in valuing intangible assets. We
therefore expect the choice between DCF and RIV to reflect the nature of the firm'sassets. In particular we expect accounting measures of performance to be less relevant for
intangibles-rich firms or for firms with large portfolios of growth opportunities.
Consistent with the results reported in Table 1 we characterize pharmaceuticals as falling
most clearly into this category, with beverages being at the other extreme and electronics
falling between these two cases.
These arguments lead to our second hypothesis:
H2: Use of multiperiod DCF models relative to multiperiod RIV models is higher in
the pharmaceuticals sector than in the beverages sector, with the electronics sector
falling between the two extremes.*
Copeland et al. (2000) note that an important conceptual advantage ofthe RIV model is
that it focuses on whether the company is generating a return in excess of its cost of
capital.^ This in turn suggests that the use of RIV and other hybrid accrual models is
likely to be greatest in sectors where accounting-based measures of profitability are a
relatively more reliable indicator of economic profitability. As before, we expect
reliability to be lower for companies with higher amounts of intangibles. This argument
suggests a more general version of H2:
H2': Use of multiperiod and hybrid cash fiow models relative to the use of
multiperiod and hybrid accrual models is higher in sectors with relatively high
proportions of intangible assets.
We now consider accrual versus cash fiow in the single-period setting. Penman (2001,
117) notes that "Free cash fiow does not measure value added in the short mn; valuegained is not matched with value given up." In other words, firm valuation based on a
multiple of a single year's free cash flow is not sensible because free cash fiow is not a
defensible proxy for value. This gives our third
hypothesis:
H3: Given the limitations of single-period cash fiow as a measure of value
generation, no analyst will use it as their dominant approach.
Finally we hypothesize that analysts view valuation by comparatives as a form of
simplified valuation analysis. If they incur the cost to produce a full-blown multiperiod
model, they present it as their dominant model. This results in our final hypothesis:
H4: Analysts who construct a multiperiod valuation analysis of either type do not
adopt valuation by comparatives as their dominant model.
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DATA, SAMPLE SELECTION, AND SCORING CONVENTION
This section reports our data source, our sample selection criteria, and the scoring
convention we adopt when analyzing the contents of analysts' reports.
Data
We download the analysts' reports from Investext Plus. Investext Plus is a database of
reports and forecasts by top Wall Street and intemational investment firms and analysts.
The service covers over 11,000 U.S. and intemational companies from 53 industries. The
current study examines reports by intemational investment firms regarding U.K.
companies.
Sample Selection
The reports selected for the study are from the period January 1997 to October 2001 and
consist of reports exceeding 15 pages in length. They cover listed companies in the
London Stock Exchange's beverages, electronics and electrical equipment (which we
abbreviate to electronics), and pharmaceuticals sectors. All companies are constituents of
the FTSE All-Share Index. Where an analyst publishes more than one report for a
particular company in the same year, we select the largest report.
From all the reports satisfying these conditions, we select a manageable final sample of
104 sellside analysts' equity research reports covering 26 companies.* We have between
32 and 38 reports per sector. Table 2 reports summary statistics for the sample of
companies and reports. Of the 26 companies in the sample, 9 are among the 100 largest
U.K.-quoted companies. The 4 (12, 10) beverage (electronics, pharmaceutical) companies
we study represent 57.1 (57.1,43.5) percent of the beverage (electronics, pharmaceutical)
companies appearing in the FTSE All-Share index.
The selection of reports for analysis reflects our focus on the most detailed researchreports. The Investext Plus database contains a wide range of report lengths, from just a
few pages to over 100 pages. The very short reports contain little by way of analysis and
often focus on the implications of a particular event or update a previous eamings
forecast. We focus on comprehensive equity research reports of over 15 pages. Table 2
shows that the length of our sampled reports ranges from 15 to 176 pages with the median
length being around 28 pages for all three sectors. This characteristic of our data selection
permits us to extend and complement the analysis of previous studies that
mainly analyze the content of reports containing only a few pages.' We choose reports
from multiple investment houses so that a particular house does not dominate the results.
But we also require each investment house to be included in more than one sector because
differences in valuation methodologies across sectors should reflect genuine difl Ferences
between the sectors, not differences in which investment houses cover each sector.
Scoring Convention
Table 3 describes the valuation perspectives and modelsand their definitionsfound in
our analysis of the valuation content of sell-side analysts' equity research reports. It shows
that analysts employ single-period comparative valuation models, hybrid valuation
models, and multiperiod valuation models. We classify the various price or value
multiples as single-period comparative valuation models, various value creation
indicators along with real option valuation techniques as hybrid
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TABELA
TABELA
valuation models, and the explicit discounted cash flow and residual income valuation
models as multiperiod valuation models. Table 3 provides a short definition of each
valuation model. We give the report a score of 1 for each valuation model in Table 3 only
if the analyst uses and discusses that particular valuation model in the main text of the
report. Any tables contained in analysts' reports are only analyzed when analysts refer to
the content in their narrative. This scoring convention assumes that only the arguments
presented in the narrative are value relevant and useful.'"
We classify a valuation model as dominant if it is most closely associated with the
analyst's own stock price recommendation. Where a report uses only one model, we score
this valuation model as dominant. Where a report uses more than one model, we first
check the valuation section of the report to see if it reveals the analyst's preference. We
also examine the first page of the report or the executive summary to see which valuation
model is highlighted. If these initial assessments yield no clear view, we calculate the
differences between the analyst's alternative value estimates and the analyst's final target
price. We select the dominant model as the one closest to the target price.
However, some reports do not have a target price and some valuation techniques do not
produce a specific value estimate. In the rare cases where we are unable to determine the
dominant valuation model using the above criteria, we use the amount of space in the
report devoted to the analysis of each model to select the dominant model. In our formal
tests, we assign a score of 1 when a model is used as the sole dominant valuation model,
and we assign a score of 0.5 to a valuation model when it is used jointly with anothermodel as the dominant valuation model.
MAIN FINDINGS
This section reports the main findings of our empirical analysis. We begin by describing
the frequency of use of the various types of valuation methodologies we encounter. We
then test our hypotheses. Finally, we report a number of sensitivity analyses.
Descriptive Analysis
Table 4 presents descriptive evidence on the range of valuation models analysts employ.
This table serves as a comparison with prior work. The table shows that almost all the
sampled reports contain some form of valuation by reference to a multiple of earnings. In
the electronics sector, only four reports (out of thirty-four) contain no valuation by
reference to earnings. Two of these reports focus on DCF models, one on a hybrid model,
and one on a multiple of sales. In the pharmaceuticals sector, eight reports (out of thirty-
eight) contain no valuation by reference to earnings. Of these eight cases, five rely on
some form of cash flow valuation analysis, one combines price to sales with DCF,another
combines price to sales with some form of option-pricing analysis, and one focuses on
option-pricing analysis. These results suggest that using earnings as a basis of valuation is
the prevalent form of analysis for the beverages sector, but that it is less prevalent for the
pharmaceuticals sector, with electronics falling between.
As in previous studies such as Barker (1999) and Bradshaw (2002), we find widespreaduse of PE models, but we also fmd that the attention given to PE models varies
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systematically across sectors in understandable ways. In contrast to prior studies, we find
considerable use of explicit multiperiod DCF models.
Tests of Empirical Hypotheses
Hypothesis 1
Hypothesis 1 states that valuation by single-period comparatives is greater in the
beverages sector than in electronics and pharmaceuticals due to differences in the growth
characteristics of the three sectors. Table 5 presents the results of a formal test of this
hypothesis. Panel A shows that
TABELA
TABELA
with HI, it is not surprising given the heavy use of comparative valuation techniques.
Financial analysts probably feel a need to use comparative valuation techniques as a
starting point even if they are not their preferred valuation choice.
A more powerful test of the difference between the stable and high-growth sectors in the
prevalence of valuation by single-period comparatives compared with multiperiod
valuation models is based on dominant valuation models. Panel B of Table 5 reports the
results of this test. In beverages, valuation by comparatives is dominant in 25.5 reports,
while multiperiod models are dominant in only 3 reports. In electronics and
pharmaceuticals, the corresponding numbers are 41 and 19 reports. A Chi-square test of
the relative proportions of reports in which single-period and multiperiod valuation
models are dominant reveals a significant difference between stable (beverages) and high-growth sectors (electronics and pharmaceuticals) at the 5 percent level (x^ = 4.62;
p-value = 0.032). This result is consistent with Hl.'^ An altemative approach to testing
this hypothesis is to see how many of the reports that use a multiperiod valuation model
choose this as their dominant valuation model. Table 5, Panel C shows that, in beverages,
13 reports use multiperiod valuation models, but they are dominant in only 3 (23.1
percent) of these reports. Corresponding figures for pharmaceuticals are multiperiod
valuation models dominant in 9 out of 13 reports (69.2 percent), and for electronics
multiperiod valuation models dominant in 10 out of 14 reports (71.4 percent). Consistent
with HI, we find a significantly greater use of multiperiod models as the dominant model
in pharmaceuticals and electronics than in beverages
(,x^ = 7 9; p-value = 0.005).'"
Hypothesis 2
Hypothesis 2 suggests that use of the DCF model relative to the RIV model should be
higher in the pharmaceuticals sector than the beverages sector due to the difference in the
extent to which financial statements properly capture the value of a firm's tangible and
intangible assets. Table 4 shows that only one report in beverages, one report in
electronics, and no reports in pharmaceuticals use RIV. Interestingly, both instances of
RIV are implemented jointly with DCF and produce the same valuation estimates as the
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DCF models. Perhaps analysts who use RIV perceive a need to back up this "new"
approach with the more widely accepted DCF. RIV is never employed as the sole
dominant valuation model, and it is used jointly with DCF as the dominant valuation
methodology in only one report (in electronics). This empirical evidence clearly shows
that financial analysts prefer DCF to RIV. While finding one instance of RIV for both
beverages and electronics and no instances of RIV for pharmaceuticals is directionally
consistent with H2, a formal Chi-square test lacks power to reject the null hypothesis.
Hypothesis H2' broadens the issue of choice between RIV and DCF, to the more general
issue of the use of multiperiod and hybrid cash flow versus multiperiod and hybrid
accrual models. Table 5, Panel D reports our test of this more general hypothesis. We find
that the use of RIV and other hybrid accrual models for valuation purposes varies
markedly across sectors. We define hybrid accrual models as comprising accounting rate
of return (ARR) and Economic Value Added (EVA^"^) while hybrid cash flow models
include cash recovery rate (CRR). Consistent with H2', the beverage sector
analysts use hybrid and multiperiod accrual models more often than analysts covering the
pharmaceuticals sector (statistically significant at the 1 percent level), while the use of
cash flow models is constant across sectors.
Insight into the combined choice of forecasting system and valuation model can be
achieved by considering the extent to which the use of accounting profitability analysis
varies across sectors.
Financial statement analysis textbooks teach students to focus on firm profitability ratios,
typically represented by return on net operating assets, and then introduce the
disaggregation of this ratio into a multiple of the operating profit margin and the ratio of
sales to net operating assets (see, e.g.. Penman 2001,354). Fairfield and Yohn (2001)show that disaggregating the change in return on net operating assets can improve
forecasts of future profitability. On the other hand, we know that accounting profitability
ratios are problematic in high-growth, intangibles-rich industries due to the
accounting treatment of R&D expenditures and intangible assets. Hence we expect
profitability analysis to be more prominent in an industry such as beverages where value
comes mainly from assets in place than in an industry such as pharmaceuticals where a
large component of value comes from growth opportunities.
Table 6 reports our examination of the profitability analyses contained in analysts' reports.
Table 6 shows, as expected, that there are differences in the importance of profitability
analysis across the three sectors. An analysis of accounting profitability is more
prominent in beverages and electronics than in pharmaceuticals. Analysts employ a ratio-
based profitability decomposition more frequently in beverages and electronics. But, even
in these sectors, the decomposition is rudimentary, with the
depth of analysis restricted to a consideration of ARR and of profit margins for some
individual products. In pharmaceuticals, analysts devote little space to accounting and
financial analysis. Instead, an analysis of strategic issues and of R&D projects is the
critical part of the valuation process.
Except for pharmaceuticals, analyzing accounting profitability is clearly more popular
than analyzing cash fiows. For example, in beverages, the ARR is used in 23 out of 32reports compared with 1 report that uses the CRR. Corresponding figures in electronics
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are ARR in 20 out of 34 reports and CRR in 3 reports. In most cases, the analysts
compare the ARR with the cost of capital. In contrast to beverages and electronics, both
the ARR and the CRR are each referred to in only one pharmaceutical report.
From Table 6, the proportion of analyst reports containing a profitability analysis based
on profit margins is significantly lower (at the 1 percent level) in pharmaceuticals (57.9
percent) than in either beverages (100.0 percent) or electronics (91.2 percent). Similarly,
the proportion of analyst reports containing a profitability analysis based on ARRs is
significantly lower (at the 1 percent level) in pharmaceuticals (2.6 percent) than in either
beverages (71.9 percent) or electronics (58.8 percent).
TABELA
Hypothesis 3
Table 7 lists the types of models that we classify as being dominant in each report. Table
7 shows that PE multiples are the dominant valuation model in 68.8 percent ofN reports
in the beverages sector, in 39.7 percent of reports in the electronics sector, and in 52.6
percent of reports in pharmaceuticals.
Across all sectors, a PE model is the dominant model in 55.5 (53.4 percent) ofthe reports,
and a multiperiod DCF models is the dominant approach in 21.5 (20.7 percent) of cases.
Consistent with H3, we fmd no report that uses a single-period cash flow multiple as its
dominant valuation methodology.
This result is important in relation to public debates and pronouncements on valuation
issues.
One often comes across the slogan "cash is king," but we fmd no evidence to support this
view in our data. Nevertheless, we do fmd several instances of price to cash flow being
used as a sensitivity analysis. Moreover we fmd greater use of price to cash flow as a
sensitivity check in beverages than in the other two sectors. The evidence reported inTable 4 shows that a cash flow multiple is used in 11 out of 32 reports in the beverages
sector and only twice out of 72 reports in the other two sectors.
This difference is statistically significant at the 1 percent level. These fmdings appear to
conflict with H3. However, in sectors of relatively low growth and reasonably stable and
predictable levels of capital investment, operating cash flows provide a viable altemative
estimate of sustainable earnings that is not prone to manipulation via discretionary
accounting accruals. Our data are thus consistent with analysts valuing the firm based
primarily on an estimate of core earnings, but they support this valuation with a
sensitivity check based on a multiple of operating cash flows.
Hypothesis 4
We expect analysts who produce a complete multiperiod valuation model to identify it astheir dominant model. A total of 40 reports produce a valuation using a multiperiod
model. Of the 40 reports that implement a multiperiod valuation model. Table 7 shows
that 20 reports identify a multiperiod model as their sole dominant model, while 4 other
reports use DCF along with other models. In 4 cases out of 40, the dominant model is not
clear from the text. This leaves 12 cases out of 40 (30 percent) where the analysts prefer
some other form of valuation. Of these 12 cases, 10 reports favor valuation based on PE
multiples, and 2 cases are based on the technology value'^ of the company (both
pharmaceuticals firms). These 12 cases are inconsistent with H4. Perhaps these analysts
believe users of their reports prefer to focus on valuation by comparatives.
TABELA
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SENSITIVITY ANALYSES
Length of Sampled Equity Research Reports
Our interest in comprehensive equity research reports that offer a detailed analysis of the
firm differs from previous studies that mainly base their results on the content analysis of
short reports of only a few pages in length.'* While prior work and our results report a
preference for valuation by single-period comparatives, the longer reports in our sample
contain more examples of sophisticated valuations than in the prior evidence. To examine
the effect of excluding reports of less than 15 pages, we analyze a smaller sample of 22
short reports (with average length 8.1 pages per report) for 15 of the firms in our initial
sample. The reports are written by analysts from the same investment houses as in our
initial sample. Seven (nearly one third) of these reports do not highlight any valuation
model in their main text. Two reports base their recommendation on the DCF model,
while the remaining thirteen use some form of single-period comparative valuation to
generate a stock recommendation. This limited analysis of shorter reports suggests a
greater use of valuation by comparatives than in longer reports, although multiperiod
DCF models are still used. Prior results based on short reports may understate the
sophistication of the analysts.
Firms Reporting Losses
Differences in the use of DCF multiperiod models across sectors could be due to variation
in the incidence of reported losses. The presence of losses may force analysts to base their
valuations on something other than PE multiples. We find that half of the sampled
pharmaceutical reports refer to firms reporting losses, raising the possibility that our
results could be due to the incidence of losses rather than the high-tech nature of the
industry. In order to discriminate between these two possibilities, we examine anotherhigh-tech sector that does not have a high incidence of losses during our
sample period. Specifically, we examine 28 reports for 10 firms in the information
technology hardware sector.'^ Of the 28 reports, 24 refer to profitable firms. We find:
1) Sixteen (57.1 percent) of the IT hardware reports use DCF, and a multiperiod DCF
model is the dominant model in 11.5 (41.1 percent) reports.
2) There are 40 instances of single-period comparative valuation techniques and 18
instances of multiperiod models. The greater use of multiperiod valuation models relative
to singleperiod models in information technology hardware compared to beverages is
significant
(X^ = 4.52; p-value = 0.034).
3) Single-period comparative valuation models are the dominant choice in 14 IT hardware
reports, with multiperiod valuation models dominant in 11.5 reports. The greater use of
single-period comparatives as the dominant model in beverages compared to IT hardware
is statistically significant (x^ = 819; p-value = 0.004).
In the light of these additional findings, we conclude that the use of multiperiod valuation
models and DCF models in particular is greater in high-growth sectors irrespective of the
incidence of reported losses.
Brokerage Firms' House Styles
Bradshaw (2002, 40) suggests that "It would be interesting to examine the extent to whichanalysts' reports systematically differ across brokerage houses ..." As mentioned earlier in
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the descriptive analysis section, ahnost all the equity research reports include some form
of single- period comparative valuation analysis. However, investment houses might
differ in their preferences for DCF and accounting-based economic profitability models.
Panel A of Table 8 reports the frequency of employing DCF analysis at each house;
Dresdner Kleinwort Wasserstein (69.2 percent), Credit Suisse First Boston (68.4 percent),
and HSBC (45.5 percent) use DCF the most.'* Table 8,
Panel B offers a sell-side analysts' ranking based on the use of accounting-based
economic profitability models (rating to economic profit, accounting rates of return,
economic value added, and residual income valuation model). HSBC uses some form of
economic profitability analysis for valuation purposes in 72.7 percent of its reports,
followed by Merrill Lynch (42.9 percent). Credit Suisse First Boston (36.8 percent), and
UBS Warburg (36.4 percent).
TABELA
lype ofRecommendation
In choosing the sample, we ignored the investment recommendation given in the report.
However, when carrying out the analysis, we record the recommendations made by the
analysts. Twelve types of recommendation appear in the reports. Six types of
recommendation (Strong Buy, Buy, Accumulate, Market Outperform, Add, Undervalued)
are positive. The 104 reports contain 64 positive recommendations. The categories
Market Perform, Neutral, and Hold are neutral recommendations.
The sample contains 25 of these. Only 15 reports contain one of the remaining three
negative categories (Market Underperform, Reduce, Sell). Counting the neutralrecommendations as weak negatives, the sample contains 64 positives and 40 negatives.
A standard binomial test rejects the hypothesis of an equal number of positive and
negative recommendations at the 1 percent level.
These findings are consistent with previous work indicating a tendency for analysts'
recommendations to be biased toward a buy.
Looking at the individual sectors, we find that the proportion of positive
recommendations is 46.9 percent in beverages, 67.6 percent in electronics, and 68.4
percent in pharmaceuticals. These differences could drive the choice of valuation model.
We therefore examine whether the choice of DCF as a valuation model varies
significantly across types of recommendation. Of the 64 (40) reports that have a positive
(neutral/negative) recommendation, 27 (13) use DCF analysis i.e., 42.2
percent (32.5 percent) of the reports. A Chi-square test reveals that this difference is not
significant i;^^ = 0.98; p-value = 0.323). For reports containing a DCF valuation, the
DCF valuation is dominant in 15 out of 27 (55.6 percent) for the positive recommendation
cases, and 6.5 out of 13 (50 percent) for the negative recommendation cases. This
difference in the proportion of reports for which DCF is the dominant valuation model
across different types of recommendations is not significant (^^ = 0.11; p-value = 0.74).
These results suggest that the type of recommendation does not drive the choice of
valuation model.SUMMARY
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The main message to emerge from this content analysis of financial analysts' reports is
that analysts appear to tailor their valuation methodologies to the circumstances of the
industry. PE models remain the mainstay of valuation practice, but other forms of analysis
complement these as circumstances demand. In some cases DCF models are used, and in
others, more detailed analyses of price-to-sales multiples, growth options, or profitability
analysis are used. Another finding is that use of the RIV model is extremely limited, but
analysts frequently use accounting data in single-period comparative and hybrid models.
Analysts appear to vary the choice of valuation methodology in understandable ways with
the context in which the valuation is made, but analyst familiarity with a valuation model
and its acceptability to clients is a strong driving force.
In terms of our positive approach to explaining valuation practices, we examine four
hypotheses.
The pervasiveness of comparative valuation techniques results in no significant difference
in their use across sectors (HI). However, a more discriminating test shows that a
multiperiod valuation model rather than a single-period method of comparatives is more
likely to be the analysts' dominant model in the electronics and pharmaceuticals sectors
compared with beverages. This result is consistent with the hypothesis that comparative
valuation models are more popular in more stable sectors
where conventional accounting does a better job of capturing the value of the firm.
Insufficient instances of RIV mean that we cannot reject the null hypothesis on the
relative use of DCF and RIV across sectors (H2). However, if we broaden this hypothesis
to compare the use of multiperiod and hybrid valuation models based on cash and
accruals, respectively, we find a significantly greater use of accruals models in beverages
than in pharmaceuticals. Analysis of the combined choice of forecasting system andvaluation model shows that profitability analysis is more prominent in reports for the
beverages sector than for electronics or pharmaceuticals.
We find no report that uses a single-period cash flow multiple as its dominant valuation
model (H3), consistent with analysts understanding the limitations of using a single-
period cash flow number. Some analysts use price to single-period cash flow as a
sensitivity check in sectors where the rate of growth is relatively stable. Finally, we find
that over half of the analysts who construct a multiperiod valuation analysis choose it is as
their dominant model. However, we also find that over one-quarter of these analysts
subsequently adopt valuation by single-period comparatives as their dominant model,
inconsistent with H4. We conjecture that this latter finding is due to valuation by
comparatives, with the implicit support of a more sophisticated model, being preferred by
the analysts' clients.
This research suggests that careful study of comprehensive analysts' reports can improve
our understanding of the variations in valuation practice. Specifically, the types of
valuations used to justify analysts' recommendations depend on characteristics of the
company being analyzed. In this paper, we focus on differences across industrial sectors,
but we anticipate that valuation behavior may vary in other contexts. Further insights may
emerge from studying analysts' reports for firms involved in IPOs, mergers, and major
capital issues. Also, analysts may employ different models for
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dividend payers versus nonpayers. The special problems of valuing firms that report
losses is also worthy of further work. Finally, sensitivity analyses suggest that prior
results based on short, less comprehensive reports may understate the sophistication of the
valuation models used by analysts.
APPENDIX A
DISCOUNTED FUTURE EARNINGS (DFE)
When analysts value a firm based on a PE multiple, they control for the effects on
earnings of nonrecurring events, transitory components, and accounting conservatism.
Where a firm has negative, very low, or very high earnings that are unlikely to continue,
financial analysts try to normalize earnings. The DFE approach to valuation, given by the
following equation, is one such technique:
V, = ^{EBITDA,^^)/(l + waccj ]x (EVIEBITDA), (1)
where F, is the fundamental value ofthe firm at date /, EBITDA^^^ is earnings before
interest, taxes, depreciation, and amortization in period / + x, wacc is the firm's weighted
average cost of capital, and (JEVIEBITDA)Jis (enterprise value)/(eamings before interest,
taxes, depreciation and amortization) for comparable firms at date /. Financial analysts
project forward to the period when the firm is expected to reach a sustainable level of
performance and discount the relevant future earnings to the
present using the firm's weighted average cost of capital. Multiplying by a current
benchmark value of EVIEBITDA for a set of comparable firms yields the fundamental
value ofthe firm.
APPENDIX B
RATING TO ECONOMIC PROFIT
The rating to economic profit (REP) is based on the relation between the market-to-book
ratio at the enterprise level and the ratio of the retum on invested capital to the weighted
average cost of capital:
REP = (EV,/IC,)/{ROIC,^J wacc) (2)
whereEV^is the market value ofthe firm's equity plus the book value ofthe firm's debt at
date t, IC, is the book value ofthe capital invested in the firm at t, ROIC,^^is the expected
retum on investedcapital in period / + 1, and wacc is the firm's weighted average cost of
capital. Valuation theorysuggests that the book-to-market ratio is an increasing function
ofthe finn's cost of capital, and that
a relatively high spread between the expected return on invested capital and the weighted
average cost of capital should lead to a high market-to-book multiple. If the latter relation
does not hold, then the market does not impound properly all the available information
about a firm's future performance in its current market value, and, hence, the firm is
undervalued. Similarly, a low expected economic performance leads to a relatively low
market-to-book ratio, otherwise the firm is overvalued.
Although analysts consider REP to be a sophisticated form of price-to-book ratio, it can
be shown that REP equals EVINOPLAT (where the denominator is one-year ahead netoperating profit less adjusted tax) multiplied by the weighted average cost of capital.
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Assuming costs of capital and leverage are constant within sectors, the profitability of an
investment strategy based on REP should be similar to one based on one-year-ahead PE
ratios.