Manajemen | Fakultas Ekonomi Universitas Maritim Raja Ali Haji joeb.82.6.343-348

Journal of Education for Business

ISSN: 0883-2323 (Print) 1940-3356 (Online) Journal homepage: http://www.tandfonline.com/loi/vjeb20

Should Earnings Per Share (EPS) Be Taught as a
Means of Comparing Intercompany Performance?
Charles E. Jordan , Stanley J. Clark & W. Robert Smith
To cite this article: Charles E. Jordan , Stanley J. Clark & W. Robert Smith (2007) Should
Earnings Per Share (EPS) Be Taught as a Means of Comparing Intercompany Performance?,
Journal of Education for Business, 82:6, 343-348, DOI: 10.3200/JOEB.82.6.343-348
To link to this article: http://dx.doi.org/10.3200/JOEB.82.6.343-348

Published online: 07 Aug 2010.

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Should฀Earnings฀Per฀Share฀(EPS)฀
Be฀Taught฀as฀a฀Means฀of฀Comparing฀
Intercompany฀Performance?
CHARLES฀E.฀JORDAN
STANLEY฀J.฀CLARK
W.฀ROBERT฀SMITH
UNIVERSITY฀OF฀SOUTHERN฀MISSISSIPPI
HATTIESBURG,฀MISSISSIPPI฀

ABSTRACT.฀Accounting฀standards฀state฀
that฀the฀purpose฀of฀presenting฀earnings฀per฀

share฀(EPS)฀is฀to฀provide฀financial฀statement฀users฀with฀information฀on฀the฀performance฀of฀a฀single฀entity.฀Yet,฀several฀textbook฀authors฀go฀further฀to฀state฀that฀EPS฀
can฀be฀used฀to฀make฀comparisons฀among฀
firms.฀In฀this฀article,฀the฀authors฀show฀that฀
although฀EPS฀comparisons฀among฀large฀
publicly฀traded฀companies฀may฀be฀appropriate,฀such฀comparisons฀should฀not฀be฀
made฀among฀small฀publicly฀traded฀firms฀
because฀the฀number฀of฀common฀shares฀outstanding฀represents฀a฀poor฀scaling฀measure฀
for฀entity฀size.฀As฀such,฀accounting฀professors฀should฀refrain฀from฀teaching฀EPS฀as฀a฀
tool฀for฀making฀intercompany฀performance฀
comparisons฀or฀at฀the฀very฀least฀should฀
warn฀students฀of฀the฀pitfalls฀of฀making฀such฀
comparisons.฀
Keywords:฀earnings฀per฀share,฀EPS,฀performance฀comparision฀
Copyright฀©฀2007฀Heldref฀Publications

A

ccounting฀ professors฀ often฀ cite฀
earnings฀ per฀ share฀ (EPS)฀ as฀
a฀ measure฀ of฀ company฀ performance.฀

When฀ Wall฀ Street฀ analysts฀ forecast฀ a฀
firm’s฀ earnings,฀ they฀ are฀ prognosticating฀EPS.฀EPS฀is฀significant฀because฀the฀
market฀ reacts฀ to฀ an฀ entity’s฀ ability฀ to฀
meet฀ its฀ earnings฀ expectations:฀ falling฀
short฀ of฀ expected฀ earnings฀ by฀ even฀ a฀
few฀pennies฀per฀share฀can฀cause฀a฀precipitous฀drop฀in฀stock฀price.
As฀Nikolai,฀Bazley,฀and฀Jones฀(2007)฀
noted,฀ the฀ amount฀ of฀ EPS฀ for฀ a฀ period฀
and฀the฀trend฀of฀EPS฀for฀several฀periods฀
for฀ an฀ entity฀ represent฀ important฀ measures฀ of฀ success฀ and฀ are฀ also฀ long-run฀
indicators฀ of฀ cash฀ flows.฀ Although฀ the฀
current฀ EPS฀ standard฀ (i.e.,฀ SFAS฀ No.฀
128,฀ Earnings฀ Per฀ Share)฀ says฀ little฀
about฀ the฀ purpose฀ of฀ EPS,฀ previous฀
standards฀ shed฀ some฀ light฀ on฀ why฀ this฀
performance฀ measure฀ exists฀ (Financial฀
Accounting฀ Standards฀ Board,฀ 1997).฀
The฀Accounting฀Principles฀Board฀(APB;฀฀
1966)฀ in฀ Opinion฀ No.฀ 9,฀ Reporting฀ the฀
Results฀of฀Operations,฀stated฀that฀

when฀ presented฀ in฀ conjunction฀ with฀ formal฀financial฀statements฀for฀a฀number฀of฀
periods฀[EPS]฀can฀be฀useful฀.฀.฀.฀in฀evaluating฀ the฀ past฀ operating฀ performance฀ of฀
a฀ business฀ entity฀ and฀ in฀ a฀ attempting฀ to฀
form฀ an฀ opinion฀ on฀ its฀ future฀ potential.฀
(para.฀30)฀

In฀ Opinion฀ No.฀ 15,฀ Earnings฀ Per฀
Share,฀the฀APB฀(1969)฀said฀EPS฀should฀
“assist฀the฀investor฀in฀weighing฀the฀sig฀

nificance฀of฀a฀corporation’s฀current฀net฀
income฀and฀of฀changes฀in฀its฀net฀income฀
from฀period฀to฀period”฀(para.฀1).
The฀APB’s฀statements฀show฀that฀EPS฀
is฀ significant฀ because฀ it฀ evaluates฀ a฀
single฀ entity’s฀ performance฀ over฀ time.฀
EPS฀ was฀ originally฀ a฀ way฀ to฀ analyze฀
the฀ accomplishments฀ of฀ a฀ single฀ company฀ and฀ not฀ a฀ means฀ to฀ compare฀ the฀
earnings฀ of฀ multiple฀ firms.฀ Yet,฀ many฀
textbook฀authors฀have฀strayed฀from฀the฀

original฀ intent฀ of฀ EPS;฀ they฀ suggest฀
that฀it฀allows฀performance฀comparisons฀
among฀ firms.฀ In฀ addition฀ to฀ pointing฀
out฀ this฀ discrepancy฀ in฀ textbooks฀ on฀
the฀ purpose฀ of฀ EPS,฀ in฀ this฀ article฀ we฀
also฀ attempt฀ to฀ empirically฀ answer฀ the฀
question฀ of฀ whether฀ EPS฀ represents฀ a฀
valid฀ method฀ of฀ making฀ intercompany฀
performance฀comparisons.
Background฀and฀Prior฀Literature
As฀ previously฀ discussed฀ in฀ the฀ professional฀standards,฀educators฀originally฀
presented฀EPS฀as฀a฀method฀of฀evaluating฀
the฀earnings฀performance฀and฀potential฀
of฀a฀single฀entity.฀Many฀accounting฀textbook฀authors฀have฀remained฀true฀to฀this฀
original฀purpose.฀For฀example,฀Williams฀
(2000)฀stated฀that฀“EPS฀figures฀are฀used฀
to฀ evaluate฀ the฀ past฀ operating฀ performance฀of฀a฀business฀in฀forming฀an฀opinion฀concerning฀its฀potential”฀(p.฀14.04).฀
Williams฀ did฀ not฀ mention฀ using฀ EPS฀
to฀ compare฀ the฀ performance฀ of฀ mulJuly/August฀2007฀


343

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tiple฀ firms.฀ Nikolai฀ et฀ al.฀ (2007)฀ noted฀
that฀ the฀ price/earnings฀ (P/E)฀ ratio฀ (i.e.,฀
market฀price฀per฀share฀divided฀by฀EPS)฀
allowed฀ for฀ intercompany฀ comparisons฀
because฀it฀represented฀the฀value฀the฀market฀places฀on฀a฀share฀of฀stock฀relative฀to฀
the฀company’s฀earnings.฀For฀example,฀a฀
P/E฀ratio฀of฀15฀for฀one฀company฀and฀10฀
for฀another฀suggests฀the฀market฀is฀more฀
optimistic฀ about฀ the฀ former฀ company’s฀
future฀earnings฀potential.฀However,฀this฀
comparison฀is฀not฀between฀firms’฀EPS,฀
but฀ rather,฀ the฀ market’s฀ perception,฀ as฀
reflected฀in฀share฀price,฀of฀future฀earnings฀potential.
Several฀ accounting฀ textbook฀ authors฀
take฀ a฀ different฀ view฀ in฀ explaining฀ the฀
purpose฀ of฀ EPS.฀ For฀ example,฀ Needles฀

and฀ Powers฀ (2007)฀ noted฀ that฀ financial฀
statement฀ readers฀ used฀ EPS฀ “to฀ judge฀ a฀
company’s฀performance฀and฀to฀compare฀
it฀ with฀ the฀ performance฀ of฀ other฀ companies”฀ (p.฀ 623).฀ Spiceland,฀ Sepe,฀ and฀
Tomassini฀ (2007)฀ suggested฀ that฀ SFAS฀
No.฀128฀ensured฀that฀rules฀for฀computing฀
and฀presenting฀EPS฀maximized฀the฀comparability฀ of฀ EPS฀ numbers฀ “from฀ one฀
company฀ to฀ the฀ next”฀ (p.฀ 965).฀ Schroeder,฀Clark,฀and฀Cathey฀(2005)฀succinctly฀ stated฀ this฀ view฀ of฀ EPS฀ when฀ they฀
claimed฀ that฀ “analysts,฀ investors,฀ and฀
creditors฀ frequently฀ look฀ for฀ some฀ way฀
to฀condense฀a฀firm’s฀performance฀into฀a฀
single฀ figure,฀ some฀ quick฀ and฀ efficient฀
way฀to฀compare฀firms’฀performance.฀EPS฀
serves฀this฀purpose”฀(p.฀175).
Thus,฀ a฀ dilemma฀ exists฀ in฀ how฀ professors฀ are฀ teaching฀ EPS฀ to฀ accounting฀ and฀ other฀ business฀ students.฀ Many฀
textbooks฀ remain฀ true฀ to฀ the฀ original฀
design฀of฀EPS฀as฀a฀means฀of฀evaluating฀
the฀ performance฀ of฀ a฀ single฀ entity,฀ but฀
others฀ indicate฀ that฀ EPS฀ represents฀ a฀
method฀ of฀ making฀ performance฀ comparisons฀ across฀ firms.฀ It฀ is฀ clear฀ that฀

EPS฀ is฀ a฀ performance฀ measure฀ for฀ a฀
single฀ company฀ that฀ can฀ be฀ evaluated฀
over฀time.฀The฀question฀is฀whether฀it฀is฀
also฀a฀legitimate฀means฀of฀making฀performance฀comparisons฀among฀entities.
Researchers฀ in฀ most฀ prior฀ studies฀ on฀
the฀ usefulness฀ of฀ EPS฀ examined฀ the฀
effects฀of฀the฀complicated฀computational฀
procedures฀ under฀APB฀ Opinion฀ No.฀ 15฀
(e.g.,฀ Boyer฀ &฀ Gibson,฀ 1979;฀ Curatola,฀
Vicknair,฀ &฀Ward,฀ 1988;฀ Dudley,฀ 1985;฀
Gaummitz฀ &฀ Thompson,฀ 1987;฀ Mautz฀
&฀ Hogan,฀ 1989).฀ No฀ researchers฀ evalu344฀

Journal฀of฀Education฀for฀Business

ated฀the฀ability฀of฀EPS฀to฀allow฀comparisons฀among฀firms.฀DeBerg฀and฀Murdoch฀
(1994)฀ noted฀ that฀ financial฀ statement฀
users฀often฀compared฀firms฀on฀the฀basis฀of฀
their฀P/E฀ratios.฀As฀mentioned฀previously,฀
such฀ comparisons฀ are฀ possible฀ because฀

P/E฀ ratios฀ represent฀ market-based฀ rankings฀of฀the฀value฀of฀firms’฀shares฀relative฀
to฀ their฀ earnings.฀Although฀ they฀ offered฀
no฀ empirical฀ proof,฀ DeBerg฀ and฀ Murdoch฀stated฀that฀EPS฀alone฀should฀not฀be฀
used฀to฀rank฀firms฀because฀it฀depends฀on฀
the฀number฀of฀common฀shares฀outstanding฀ for฀ each฀ company:฀ as฀ such,฀ EPS฀
amounts฀ of฀ different฀ companies฀ are฀ not฀
readily฀comparable.
The฀heart฀of฀the฀issue฀is฀whether฀the฀
number฀ of฀ common฀ shares฀ outstanding฀ represents฀ an฀ appropriate฀ scaling฀
measure฀ for฀ company฀ size.฀ If฀ so,฀ EPS฀
comparisons฀ among฀ firms฀ would฀ be฀
logical.฀ If฀ not,฀ however,฀ EPS฀ comparisons฀among฀entities฀would฀be฀meaningless.฀ A฀ simple฀ example฀ demonstrates฀
the฀potential฀danger฀of฀using฀EPS฀alone฀
to฀evaluate฀the฀performance฀of฀different฀
companies.฀In฀their฀2005฀earnings฀statements,฀Wal-Mart฀and฀IBM฀reported฀net฀
incomes฀of฀$11.23฀billion฀and฀$7.99฀billion,฀ respectively฀ (U.S.฀ Securities฀ and฀
Exchange฀ Commission฀ [SEC],฀ 2006).฀
Which฀ company฀ was฀ more฀ profitable฀
in฀2005?฀The฀answer฀to฀this฀question฀is฀
unclear฀ unless฀ one฀ scales฀ the฀ earnings฀

for฀ firm฀ size.฀ Although฀ both฀ are฀ very฀
large฀ entities,฀ they฀ are฀ not฀ exactly฀ the฀
same฀ size:฀ Wal-Mart’s฀ 2005฀ year-end฀
assets฀ exceeded฀ $138฀ billion,฀ whereas฀
IBM’s฀ assets฀ totaled฀ about฀ $106฀ billion฀ (SEC).฀ Scaling฀ the฀ firms’฀ profits฀
by฀total฀assets฀resulted฀in฀Wal-Mart฀and฀
IBM฀providing฀returns฀on฀investment฀in฀
2005฀of฀8.14%฀and฀7.54%,฀respectively.฀
Thus,฀ using฀ this฀ performance฀ measure,฀
both฀companies฀were฀quite฀profitable฀in฀
2005,฀with฀Wal-Mart฀only฀slightly฀more฀
so฀than฀IBM.
However,฀ using฀ EPS฀ as฀ a฀ performance฀ measure฀ paints฀ a฀ markedly฀ different฀picture฀of฀profitability:฀Wal-Mart฀
and฀ IBM฀ reported฀ 2005฀ EPS฀ figures฀
of฀ $2.68฀ and฀ $4.99,฀ respectively฀ (SEC,฀
2006).฀ Comparing฀ EPS฀ for฀ the฀ firms฀
leads฀one฀to฀believe฀that฀IBM฀was฀86%฀
more฀ profitable฀ than฀ Wal-Mart฀ when฀
the฀ earlier฀ analysis฀ revealed฀ that฀ the฀
two฀ companies฀ earned฀ very฀ similar฀

returns฀ in฀ 2005.฀ The฀ EPS฀ discrepancy฀

lies฀ in฀ the฀ number฀ of฀ common฀ shares฀
outstanding.฀ With฀ approximately฀ 4.19฀
billion฀ shares,฀Wal-Mart’s฀ denominator฀
for฀the฀EPS฀calculation฀far฀exceeds฀the฀
1.6฀ billion฀ shares฀ for฀ IBM฀ (SEC).฀ For฀
these฀ two฀ companies,฀ the฀ number฀ of฀
shares฀outstanding฀represents฀a฀misleading฀ base฀ with฀ which฀ to฀ scale฀ earnings฀
for฀ comparison฀ purposes.฀ In฀ asset฀ size,฀
Wal-Mart฀ is฀ only฀ 1.3฀ times฀ as฀ large฀ as฀
IBM,฀although฀it฀has฀2.6฀times฀as฀many฀
common฀shares฀outstanding.
The฀ analysis฀ of฀ Wal-Mart฀ and฀ IBM฀
demonstrates฀ the฀ potential฀ pitfall฀ of฀
comparing฀ performance฀ between฀ firms฀
using฀EPS.฀Not฀all฀comparisons฀among฀
entities฀ would฀ result฀ in฀ such฀ drastic฀
effects฀because฀the฀number฀of฀common฀
shares฀outstanding฀across฀a฀broad฀spectrum฀of฀companies฀would฀provide฀some฀
measure฀of฀entity฀size.฀In฀the฀remainder฀
of฀this฀article,฀we฀determine฀whether฀the฀
number฀ of฀ common฀ shares฀ outstanding฀
is฀an฀acceptable฀scaling฀measure฀of฀firm฀
size฀to฀evaluate฀the฀legitimacy฀of฀making฀ performance฀ comparisons฀ among฀
firms฀using฀EPS.
METHOD
To฀ decide฀ if฀ the฀ number฀ of฀ common฀
shares฀outstanding฀represents฀a฀reasonable฀ measure฀ of฀ company฀ size฀ and฀ a฀
legitimate฀ way฀ to฀ scale฀ earnings,฀ we฀
collected฀ data฀ on฀ 300฀ publicly฀ traded฀
companies.฀ We฀ randomly฀ chose฀ 100฀
companies฀ from฀ each฀ of฀ 3฀ size฀ groupings฀ on฀ the฀ basis฀ of฀ market฀ capitalization฀ (i.e.,฀ large฀ cap฀ firms฀ with฀ capitalization฀ exceeding฀ $10฀ billion,฀ medium฀
cap฀ firms฀ with฀ capitalization฀ between฀
$1฀ billion฀ and฀ $10฀ billion,฀ and฀ small฀
cap฀ firms฀ with฀ capitalization฀ less฀ than฀
$1฀billion).฀This฀selection฀process฀guaranteed฀that฀firms฀of฀all฀sizes฀were฀represented฀in฀the฀sample.฀For฀each฀company,฀
we฀collected฀numerous฀variables฀for฀the฀
most฀ recent฀ year฀ end฀ (i.e.,฀ typically฀
2005)฀from฀information฀available฀on฀the฀
LexisNexis฀Business฀database.
The฀ variables฀ included฀ numerous฀
alternative฀measures฀of฀company฀size,฀
such฀ as฀ sales,฀ total฀ assets,฀ number฀
of฀ employees,฀ and฀ number฀ of฀ common฀shares฀outstanding.฀We฀examined฀
several฀ proxies฀ of฀ firm฀ size฀ because฀
previous฀ researchers฀ (Al-Khazali฀ &฀
Zoubi,฀ 2005)฀ demonstrated฀ that฀ mea-

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sures฀ of฀ entity฀ size฀ are฀ not฀ the฀ same฀
across฀different฀economic฀sectors.฀For฀
example,฀total฀assets฀may฀be฀a฀reliable฀
measure฀ of฀ size฀ for฀ large฀ firms฀ but฀ a฀
less฀ reliable฀ gauge฀ for฀ small฀ companies฀ because฀ small฀ firms฀ often฀ tend฀
to฀be฀technology฀based฀with฀few฀hard฀
assets;฀ for฀ them,฀ sales฀ revenue฀ may฀
be฀a฀more฀appropriate฀measure฀of฀size฀
than฀are฀assets.
Our฀purpose฀in฀this฀study฀was฀to฀determine฀ if฀ the฀ number฀ of฀ common฀ shares฀
appears฀to฀be฀a฀relevant฀measure฀of฀firm฀
size.฀To฀make฀this฀evaluation,฀we฀examined฀ the฀ strength฀ of฀ relation฀ between฀
shares฀ outstanding฀ and฀ the฀ other฀ more฀
readily฀accepted฀measures฀of฀entity฀size฀
using฀ correlation฀ coefficients฀ and฀ simple฀ regression฀ models.฀ A฀ strong฀ relation฀between฀shares฀outstanding฀and฀the฀
other฀measures฀of฀size฀suggests฀that฀the฀
number฀ of฀ shares฀ is฀ a฀ good฀ proxy฀ for฀
firm฀ size,฀ whereas฀ a฀ weak฀ relationship฀
indicates฀it฀is฀not.
To฀make฀the฀analysis฀more฀meaningful,฀ we฀ divided฀ the฀ sample฀ of฀ firms฀
into฀ two฀ subsamples฀ on฀ the฀ basis฀ of฀
company฀size฀because฀significant฀prior฀
research฀ suggest฀ that฀ the฀ financial฀
characteristics฀of฀large฀and฀small฀firms฀
differ.฀For฀example,฀Lie฀and฀Lie฀(2002)฀
demonstrated฀ that฀ the฀ accuracy฀ and฀
bias฀ of฀ company฀ valuation฀ estimates฀
varied฀ greatly฀ by฀ company฀ size.฀ Huff฀
and฀Harper฀(1999)฀found฀that฀solvency฀
and฀ liquidity฀ ratios฀ differed฀ markedly฀
between฀ large฀ and฀ small฀ firms.฀ Zhao฀
yang,฀Chi-Wen,฀and฀Rosett฀(2005)฀concluded฀ that฀ the฀ variability฀ of฀ accounting฀accruals฀is฀related฀to฀firm฀size.฀Hall฀
and฀Weiss฀ (1967)฀ indicated฀ that฀ profit฀
rates฀ were฀ related฀ to฀ entity฀ size฀ with฀
larger฀ firms฀ generally฀ experiencing฀
higher฀ profit฀ rates.฀ Pomfret฀ and฀ Shapiro฀ (1980)฀ similarly฀ noted฀ that฀ profit฀
stability฀ is฀ positively฀ correlated฀ with฀
company฀size.฀Because฀large฀and฀small฀
firms฀ differ฀ drastically฀ in฀ their฀ financial฀characteristics,฀we฀split฀the฀sample฀
of฀ 300฀ firms฀ into฀ two฀ groups฀ on฀ the฀
basis฀ of฀ total฀ assets฀ as฀ the฀ measure฀ of฀
company฀size.฀The฀median฀total฀assets฀
for฀ the฀ entire฀ sample฀ is฀ $1.03฀ billion.฀
The฀ 150฀ firms฀ with฀ assets฀ exceeding฀
this฀ amount฀ comprise฀ the฀ subsample฀
of฀ large฀ firms,฀ and฀ the฀ 150฀ firms฀ with฀
assets฀below฀$1.03฀billion฀make฀up฀the฀
small-firm฀group.


RESULTS
Table฀ 1฀ provides฀ summary฀ measures฀ for฀ return฀ on฀ sales฀ and฀ EPS฀ for฀
the฀ two฀ groups฀ of฀ firms฀ segregated฀ by฀
size.฀ We฀ analyzed฀ medians฀ rather฀ than฀
means฀ because฀ means฀ can฀ be฀ unduly฀
influenced฀ by฀ a฀ few฀ extreme฀ values.฀
Medians฀are฀much฀less฀affected฀by฀outlying฀ values฀ and฀ are฀ often฀ considered฀
more฀representative฀of฀a฀group฀than฀are฀
means.฀ Table฀ 1฀ also฀ presents฀ the฀ first฀
and฀third฀quartiles.฀Two฀common฀ratios฀
measuring฀ profitability฀ are฀ return฀ on฀
investment฀(i.e.,฀net฀income฀divided฀by฀
total฀assets)฀and฀return฀on฀sales฀(i.e.,฀net฀
income฀ divided฀ by฀ sales).฀ Both฀ measures฀effectively฀normalize฀earnings฀for฀
the฀ size฀ of฀ a฀ company฀ and฀ allow฀ earnings฀ comparisons฀ among฀ different฀ size฀
firms.฀ However,฀ because฀ total฀ assets฀
segregate฀the฀samples,฀return฀on฀investment฀would฀be฀biased฀toward฀the฀group฀
of฀ small฀ companies.฀ Ceteris฀ paribus,฀
a฀ company฀ with฀ a฀ smaller฀ asset฀ base,฀
would฀be฀expected฀to฀produce฀a฀higher฀
return฀on฀investment฀than฀would฀a฀company฀ with฀ a฀ larger฀ asset฀ base.฀ For฀ this฀
reason,฀we฀chose฀return฀on฀sales฀(ROS),฀
or฀profit฀margin,฀to฀scale฀profitability.
As฀prior฀researchers฀suggested,฀Table฀
1฀ shows฀ that฀ the฀ large฀ firms฀ in฀ general฀
are฀ more฀ profitable฀ than฀ are฀ the฀ small฀
entities.฀The฀median฀ROS฀percentages฀for฀
the฀groups฀of฀large฀and฀small฀firms฀were฀
6.88%฀ and฀ 5.70%,฀ respectively.฀ However,฀ using฀ a฀ cutoff฀ alpha฀ level฀ of฀ .01,฀
these฀medians฀did฀not฀differ฀at฀a฀statistically฀significant฀level฀(i.e.,฀the฀alpha฀level฀
for฀ comparing฀ the฀ medians฀ was฀ .025).฀
Using฀EPS฀as฀a฀measure฀of฀earnings฀performance฀ suggested฀ that฀ the฀ large฀ firms฀
were฀ much฀ more฀ profitable฀ than฀ were฀
their฀ smaller฀ counterparts.฀ The฀ median฀
EPS฀ for฀ the฀ large฀ firms฀ of฀ $2.10฀ was฀
almost฀2.5฀times฀the฀small฀firms’฀median฀
EPS฀of฀$0.85.฀These฀medians฀differed฀at฀
a฀statistically฀significant฀level฀(α฀=฀.000).฀
If฀EPS฀represented฀a฀legitimate฀measure฀
of฀earnings฀scaled฀for฀company฀size,฀then฀
the฀comparison฀of฀EPS฀between฀the฀large฀
and฀ small฀ firms฀ should฀ have฀ followed฀ a฀
pattern฀similar฀to฀the฀comparison฀of฀ROS฀
for฀the฀two฀groups.฀This฀was฀not฀the฀case.฀
The฀ROS฀medians฀suggested฀that฀only฀a฀
slight฀ difference฀ in฀ profitability฀ existed฀
between฀the฀two฀groups฀whereas฀the฀EPS฀
medians฀ indicated฀ a฀ huge฀ difference฀ in฀

profitability฀between฀the฀large฀and฀small฀
firms.฀This฀finding฀questions฀the฀usefulness฀ of฀ EPS฀ as฀ a฀ means฀ of฀ comparing฀
earnings฀among฀firms.
Another฀method฀to฀determine฀whether฀ the฀ number฀ of฀ common฀ shares฀ outstanding฀ is฀ a฀ suitable฀ measure฀ of฀ firm฀
size฀ is฀ to฀ examine฀ the฀ strength฀ of฀ relation฀between฀the฀number฀of฀shares฀and฀
other฀ more฀ accepted฀ measures฀ of฀ firm฀
size.฀ As฀ Al-Khazali฀ and฀ Zoubi฀ (2005)฀
noted,฀there฀is฀no฀one฀variable฀that฀best฀
captures฀firm฀size฀for฀all฀economic฀sectors฀ or฀ types฀ of฀ firms.฀ For฀ this฀ reason,฀
we฀examined฀several฀measures฀of฀entity฀
size.฀ Table฀ 2฀ and฀ Table฀ 3฀ provide฀ correlation฀matrixes฀for฀the฀groups฀of฀large฀
and฀small฀firms,฀respectively,฀and฀report฀
the฀ coefficients฀ for฀ sales฀ revenue,฀ total฀
assets,฀number฀of฀employees,฀and฀number฀of฀common฀shares฀outstanding.
It฀ is฀ not฀ surprising฀ that฀ the฀ more฀ traditional฀measures฀of฀firm฀size,฀sales,฀and฀
total฀ assets฀ exhibited฀ strong฀ coefficients฀
for฀ both฀ the฀ large฀ and฀ small฀ firm฀ groups฀
(i.e.,฀ .7131฀ and฀ .6402฀ for฀ the฀ large฀ and฀
small฀ entities,฀ respectively).฀ Even฀ the฀
number฀ of฀ employees,฀ a฀ much฀ less฀ frequently฀used฀scaling฀measure฀for฀company฀size,฀showed฀moderate-to-strong฀relation฀with฀the฀traditional฀measures฀of฀size฀
(i.e.,฀sales฀and฀total฀assets)฀for฀both฀groups฀
of฀ firms.฀ For฀ example,฀ the฀ coefficients฀
between฀number฀of฀employees฀and฀sales฀
for฀ the฀ groups฀ of฀ large฀ and฀ small฀ firms฀
were฀.7950฀and฀.5640,฀respectively.
If฀ the฀ number฀ of฀ shares฀ represents฀ a฀
legitimate฀measure฀of฀firm฀size,฀then฀it,฀
too,฀ should฀ possess฀ a฀ relatively฀ strong฀
correlation฀ with฀ the฀ other฀ measures฀ of฀
size.฀The฀coefficients฀on฀the฀bottom฀row฀
of฀ each฀ matrix฀ reveals฀ these฀ relationships.฀ For฀ the฀ large฀ firms,฀ coefficients฀
between฀ the฀ number฀ of฀ shares฀ and฀ the฀
other฀three฀measures฀of฀firm฀size฀all฀suggest฀ a฀ strong฀ correlation.฀ For฀ example,฀
the฀coefficient฀between฀shares฀and฀sales฀
of฀.8311฀clearly฀indicates฀that฀the฀number฀ of฀ shares฀ is฀ highly฀ related฀ to฀ sales,฀
an฀ often-used฀ measure฀ of฀ firm฀ size.฀As฀
such,฀ the฀ number฀ of฀ shares฀ is฀ a฀ valid฀
proxy฀ for฀ company฀ size.฀ For฀ the฀ small฀
firms,฀ however,฀ very฀ weak฀ correlations฀
exist฀between฀the฀number฀of฀shares฀and฀
the฀other฀measures฀of฀size.฀For฀example,฀
the฀coefficient฀between฀shares฀and฀sales฀
of฀.1383฀suggests฀only฀a฀slight฀correlations฀between฀the฀number฀of฀shares฀and฀
July/August฀2007฀

345

TABLE฀1.฀Return฀on฀Sales฀and฀Earnings฀Per฀Share฀(EPS)฀for฀Large฀and฀
Small฀Firms


Return฀on฀sales฀(%)฀

Variable฀
Median฀
75th฀percentile฀
25th฀percentile฀

Earnings฀per฀share฀($)

Large฀firms฀

Small฀firms฀

Large฀firms฀

Small฀firms

6.88a฀
11.02฀
4.45฀

5.70a฀
10.51฀
0.78฀

2.10b฀
3.86฀
1.39฀

0.85b
1.62
0.04

a

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A฀one฀sample฀median฀test฀revealed฀a฀difference฀in฀the฀return-on-sales฀medians฀between฀the฀large฀
and฀small฀firms฀at฀α฀=฀.025.฀ bA฀one฀sample฀median฀test฀revealed฀a฀difference฀in฀the฀earnings-pershare฀medians฀between฀the฀large฀and฀small฀firms฀at฀α฀=฀.000.

TABLE฀2.฀Correlation฀Matrixes฀for฀Large฀Firms฀
Variable฀
Sales฀
Total฀assets฀
Employees฀(n)฀
Shares฀(n)฀

Sales฀
1
.7131฀
.7950฀
.8311฀

Total฀assets฀

Employees฀(n)฀

1

.4857฀
.6381฀

1
.6838฀

Shares฀(n)

1

TABLE฀3.฀Correlation฀Matrixes฀for฀Small฀Firms฀
Variable฀
Sales฀
Total฀assets฀
Employees฀(n)฀
Shares(n)฀

Sales฀
1
.6402฀
.5640฀
.1383฀

Total฀assets฀

1

.4032฀
.1790฀

Employees฀(n)฀

1
.0139฀

Shares฀(n)

is฀not฀related฀to฀any฀of฀the฀measures฀of฀
firm฀ size฀ at฀ a฀ statistically฀ significant฀
level.฀ For฀ small฀ firms,฀ the฀ number฀ of฀
shares฀is฀a฀poor฀proxy฀for฀firm฀size฀and,฀
therefore,฀ an฀ inappropriate฀ means฀ of฀
scaling฀earnings.
It฀is฀unclear฀why฀the฀number฀of฀shares฀
is฀a฀good฀proxy฀for฀entity฀size฀for฀large฀
firms฀ but฀ not฀ for฀ small฀ ones.฀ However,฀
it฀ reinforces฀ prior฀ findings฀ (e.g.,฀ Huff฀
&฀Harper,฀1999;฀Zhaoyang฀et฀al.,฀2005)฀
that฀the฀financial฀characteristics฀of฀large฀
and฀ small฀ companies฀ vary.฀ Perhaps฀ the฀
number฀ of฀ shares฀ is฀ a฀ weak฀ predictor฀
of฀ firm฀ size฀ for฀ small฀ firms฀ because฀
little฀variability฀exists฀among฀the฀small฀
entities฀ in฀ relation฀ to฀ shares,฀ at฀ least฀
when฀compared฀with฀the฀variability฀for฀
the฀large฀firms.฀For฀example,฀the฀mean฀
number฀of฀shares฀for฀the฀group฀of฀small฀
firms฀ is฀ 41.4฀ million,฀ with฀ a฀ standard฀
deviation฀ approximately฀ 1.5฀ times฀ the฀
size฀of฀the฀mean.฀The฀mean฀number฀of฀
shares฀ for฀ the฀ large฀ firms฀ is฀ 311.2฀ million,฀ with฀ a฀ standard฀ deviation฀ about฀ 3฀
times฀the฀size฀of฀the฀mean.฀The฀tighter฀
clustering฀ of฀ the฀ number฀ of฀ shares฀ for฀
the฀small฀firms฀suggests฀that฀shares฀vary฀
little฀for฀small฀firms,฀regardless฀of฀their฀
relative฀ size฀ within฀ the฀ group.฀ Future฀
researchers฀ could฀ investigate฀ why฀ the฀
number฀ of฀ shares฀ proxies฀ for฀ size฀ for฀
large฀but฀not฀small฀firms.

1

DISCUSSION
a฀readily฀accepted฀measure฀of฀size฀(i.e.,฀
sales).฀ For฀ small฀ firms,฀ the฀ number฀ of฀
shares฀is฀a฀poor฀proxy฀for฀entity฀size.
In฀addition฀to฀the฀correlation฀matrixes,฀we฀ran฀simple฀regression฀models฀to฀
determine฀the฀strength฀of฀the฀statistical฀
relationships฀ between฀ the฀ number฀ of฀
shares฀ and฀ the฀ other฀ measures฀ of฀ firm฀
size฀ for฀ the฀ groups฀ of฀ large฀ and฀ small฀
entities.฀For฀both฀groups,฀Table฀4฀presents฀separate฀regression฀models฀with฀the฀
number฀ of฀ shares฀ regressed฀ on฀ each฀ of฀
the฀other฀three฀measures฀of฀firm฀size.฀
Table฀4฀reveals฀that฀each฀of฀the฀three฀
regression฀ models฀ for฀ the฀ large฀ firms฀
produced฀ respectable฀ coefficients฀ of฀
determination฀ (r2s),฀ ranging฀ from฀ .4071฀
for฀ total฀ assets฀ to฀ .6908฀ for฀ sales.฀ More฀
important,฀ the฀ alpha฀ levels฀ for฀ the฀ F฀
ratios฀ for฀ all฀ three฀ models฀ indicate฀ that฀
the฀number฀of฀shares฀was฀related฀to฀each฀
of฀ the฀ three฀ measures฀ of฀ firm฀ size฀ at฀ a฀
346฀

Journal฀of฀Education฀for฀Business

statistically฀significant฀level฀(α฀=฀.000฀for฀
each฀model).฀For฀large฀firms,฀the฀number฀
of฀shares฀seems฀to฀provide฀a฀good฀proxy฀
for฀ entity฀ size฀ and,฀ thus,฀ represents฀ a฀
viable฀measure฀for฀scaling฀earnings.฀
Table฀ 4฀ shows฀ that,฀ for฀ the฀ small฀
entities,฀the฀number฀of฀shares฀possessed฀
weak฀ relationship฀ with฀ the฀ other฀ measures฀ of฀ size.฀ For฀ example,฀ the฀ r2฀ of฀
.0191฀for฀the฀sales฀model฀indicates฀that฀
the฀ number฀ of฀ shares฀ explained฀ less฀
than฀ 2%฀ of฀ the฀ variation฀ in฀ sales.฀ This฀
pales฀ in฀ comparison฀ to฀ the฀ nearly฀ 70%฀
of฀variation฀in฀sales฀explained฀by฀shares฀
for฀the฀large฀firms.฀The฀total฀assets฀and฀
employees฀ models฀ for฀ the฀ small฀ firms฀
produce฀ similarly฀ low฀ r2s.฀ Even฀ more฀
telling฀are฀the฀alpha฀levels฀for฀the฀models’฀ F฀ ratios.฀Again฀ using฀ .01฀ as฀ a฀ cutoff฀level฀for฀statistical฀significance,฀the฀
alpha฀ levels฀ for฀ the฀ three฀ models฀ in฀
Table฀4฀reveal฀that฀the฀number฀of฀shares฀

The฀professional฀standards฀concerning฀EPS฀state฀that฀its฀purpose฀is฀to฀provide฀information฀on฀the฀past฀operating฀
performance฀ of฀ an฀ entity.฀ This฀ information฀ on฀ past฀ performance฀ allows฀
financial฀statement฀readers฀to฀attempt฀
to฀predict฀future฀performance฀as฀well.฀
The฀standards฀are฀silent฀regarding฀the฀
use฀ of฀ EPS฀ in฀ making฀ comparisons฀
among฀entities.฀Many฀accounting฀textbook฀authors฀follow฀suit฀and฀note฀that฀
EPS฀is฀useful฀only฀for฀evaluating฀performance฀ within฀ a฀ single฀ company.฀
Several฀ other฀ textbook฀ authors฀ state฀
that฀ EPS฀ allows฀ intercompany฀ performance฀ comparisons.฀ Failure฀ of฀ the฀
professional฀ standards฀ to฀ state฀ that฀
EPS฀ may฀ be฀ used฀ for฀ comparisons฀
among฀ companies฀ does฀ not฀ necessarily฀ mean฀ that฀ it฀ should฀ not฀ be฀ done,฀
especially฀ if฀ the฀ number฀ of฀ common฀

TABLE฀4.฀Simple฀Regression฀Models฀for฀Large฀and฀Small฀Firms


Dependent฀
variable฀

Downloaded by [Universitas Maritim Raja Ali Haji] at 23:30 11 January 2016

Large฀firms

Shares฀

Shares฀

Shares฀
Small฀firms

Shares฀

Shares฀

Shares฀


Independent
variable฀

Intercept฀

X฀variable฀

r 2฀

F(1,฀148)฀

p

Sales฀
Total฀assets฀
Employees฀

3780598฀
4992764฀
17.33฀

14.08฀
67.52฀
.00฀

.69฀
.40฀
.46฀

332.86฀
102.32฀
130.83฀

.00
.00
.00

Sales฀
Total฀assets฀
Employees฀

474729฀
349594฀
2.39฀

1.16฀
.77฀
.00฀

.01฀
.03฀
.00฀

2.91฀
4.93฀
0.03฀

.09
.02
.86

shares฀outstanding฀represents฀a฀viable฀
scaling฀measure฀for฀firm฀size.
The฀results฀of฀our฀study฀show฀that฀the฀
number฀of฀shares฀proxies฀for฀firm฀size฀for฀
large฀publicly฀traded฀companies,฀but฀not฀
for฀small฀publicly฀traded฀ones.฀As฀such,฀
EPS฀ is฀ a฀ viable฀ measure฀ for฀ comparing฀performance฀only฀among฀large฀companies.฀ These฀ findings฀ have฀ significant฀
repercussions฀ for฀ teaching฀ EPS฀ in฀ the฀
classroom.฀If฀EPS฀is฀taught฀or฀presented฀
as฀ a฀ procedure฀ for฀ comparing฀ earnings฀
performance฀among฀firms,฀the฀presentation฀should฀come฀with฀a฀strict฀caveat฀that฀
this฀use฀applies฀solely฀to฀large฀firms.฀It฀is฀
perhaps฀better฀and฀certainly฀less฀confusing฀to฀students฀if฀EPS฀is฀not฀presented฀in฀
the฀ classroom฀ as฀ a฀ means฀ of฀ evaluating฀
intercompany฀performance.
NOTE
Dr.฀ Charles฀ E.฀ Jordan฀ teaches฀ financial฀ and฀
cost฀ accounting.฀ His฀ research฀ focuses฀ on฀ behavioral฀issues฀in฀financial฀accounting.
Dr.฀ Stanley฀ J.฀ Clark฀ teaches฀ financial฀ and฀ tax฀
accounting฀and฀is฀an฀active฀discussion฀leader฀in฀continuing฀professional฀education฀seminars.฀฀His฀research฀
concentrates฀on฀financial฀accounting฀issues.
Dr.฀ W.฀ Robert฀ Smith฀ teaches฀ and฀ conducts฀
research฀ mainly฀ in฀ tax฀ accounting.฀ He฀ recently฀
spent฀a฀year฀and฀a฀half฀on฀sabbatical฀working฀with฀
KPMG฀International฀in฀both฀tax฀and฀audit.



Parameter฀estimates

Correspondence฀ concerning฀ this฀ article฀ should฀
be฀addressed฀to฀Dr.฀Charles฀E.฀Jordan,฀University฀
of฀ Southern฀ Mississippi,฀ school฀ of฀ accountancy฀
and฀information฀systems,฀118฀College฀Dr.฀#5178,฀
Hattiesburg,฀MS฀39406.
E–mail:฀charles.jordan@usm.edu
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July/August฀2007฀

347

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