Question
Case 4 You have been hired as a consultant to advise on how to present the tax differences between books and tax returns on the
We investigate why temporary book-tax difference appear to serve as a useful signal of earnings
persistence (Hanlon 2005). We first test and show that temporary book-tax differences provide
incremental information over the magnitude of accruals for the persistence of earnings and accruals. We
then opine that there are multiple potential sources of large positive book-tax differences. We predict and
find that firms with large positive book-tax differences likely arising from upward earnings management
(tax avoidance) exhibit lower (higher) earnings and accruals persistence than do other firms with large
positive book-tax differences. Finally, we find significant variation in current-period earnings and
accruals response coefficients and insignificant hedge returns in period , consistent with investors
being able to look through to the source.
This study investigates whether the tax-specific industry expertise of the external audit firm influences its
clients level of tax avoidance. The results suggest that clients purchasing tax services from their external
audit firm engage in greater tax avoidance when their external audit is a tax expert. Because the external
audit firm potentially influences clients tax avoidance activities via the provision of tax consulting
services and the financial statement audit, we also examine whether the overall expertise (i.e., the
combined tax and audit expertise) of the external audit firm is associated with tax avoidance. We find
that the external audit firms overall experts are able to combine their audit and tax expertise to develop
tax strategies that benefit clients from both a tax and financial statement perspective. In combination, our
results suggest that the tax-specific industry expertise of the external audit firm plays a significant role in
its clients tax avoidance.
We contend that tax-related information, which has not yet been considered by extent research, can
significantly improve bankruptcy prediction. We investigate the association between abnormal changes
in book-tax differences (BTDs) and bankruptcy using a hazard model and out-of-sample testing as in
(Shumway 2001). We find that information regarding abnormal changes in BTDs significantly increases
our ability to ex ante identify firms that have an increased likelihood of going bankrupt in the coming
five year period. The information provided by BTDs significantly adds information to traditional
models for predicting bankruptcy, such as that proposed by (Ohlson1980), and also expands the
prediction window beyond the traditional two- year time frame.
This study provides insight into why large positive book-tax differences serve as a bus signal of future
earnings and accruals persistence. Our findings suggest that in some ca positive book-tax differences do
reflect discretion in the accrual process that leads to lower earnings and accruals persistence. For this
reason, on average, large positive book-tax differences are a useful signal of earnings quality. However,
we provide evidence that the usefulness of this signal is contingent upon the predominant source of the
book-tax difference in cases where large positive book-tax differences arise primarily from tax reporting
strategies the persistence of accruals is significantly greater than that of other firms with large positive
book-tax differences. In contrast, when large positive book-tax differences are generated primarily by
upward earnings management the persistence of earnings and accruals is significantly less than that of
other large positive book-tax difference firms. Furthermore, lower overall earnings and accrual
l persistence of large positive book-tax difference firms is the result of the relatively high number of high
accrual firms (26%) within this group.
After removing high discretionary accrued find lower persistence of earnings and accruals for this group
as compared to the firms in small book tax difference group. Recent debate by policy makers has
centered on the issue of improving disclosures of differences in book income and taxable income. In the
wake of several prominent accounting scandals, Senator Charles Grassley sent a letter to President Bush
on October 7, 2002 asking the 31 administration to consider whether action was warranted to improve
disclosures of book-tax differences. McGill and Outlay (2004) provide a detailed analysis of identified
corporate tax shelter participants and show that their tax footnote disclosures provide little information
on these transactions. However, despite concerns over the limited information provided to investor
regarding differences between a firms book and taxable income we find investors are able to us these
disclosures to look through to the source of book-tax differences and correctly price the persistence of
accruals. This result compliments the findings of Ayers, LaPlante, and McGuire (2010) who show that
credit analysts also appear able to look through to the source of book-tax differences in assessing credit-
worthiness. Together these results suggest financial statement users are fairly sophisticated in their ability
to understand the implications of different types of book-tax differences.
required : Organize and interpret the findings of your research in two to three pages (12-point font, double-spaced).
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