4
relative to the pre-
IFRS
period among UK firms that had the option to use fair-value
accounting for
PPE
in
the pre-
IFRS
period. Furthermore, in its report to the European
Commission in 2007, the Institute of Chartered Accountants in England and Wales
(ICAEW) documents that the majority of firms in the EU elected to use a historical cost
model rather than a fair-value model to measure non-financial assets following
mandatory
IFRS
adoption.
IFRS
, under IAS 36 (
Impairment of Assets
), requires regular impairment testing
for
PPE
and provides detailed procedures for determining when asset impairment occurs
and for measuring the amount of impairment. Further,
IFRS
requires impairment testing
procedures be disclosed in the notes to the financial statements. On
the other hand, most
EU countries’ domestic GAAP did not have detailed impairment testing procedures for
PPE
during the pre-
IFRS
period and impairment testing procedures were less transparent
to investors and outside shareholders. In addition, given that
EU firms are subject to the
same impairment rules after
IFRS
mandatory adoption, impairment testing is more
comparable among EU firms and managers have less discretion in measuring and
reporting impairment losses. Overall,
IFRS
, under IAS 36, has more informative, more
transparent, and more comparable impairment rules (i.e., strict impairment rules) for
PPE
relative to EU countries’ domestic GAAP that had loose (i.e., less strict) impairment
rules.
5
Therefore, I predict that firms that used historical cost
accounting with impairment
testing in the post-
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