part 3 efficient markets and the
information approach to decision usefulness
efficient markets
past paper Q1
describe the idea of stock market efficiency
1. 理性投资者(至少是部分)使用info去修正他们的预测。足够的人这样做市场就是有效的
2. efficient securities market 定义以及与strong form efficiency 的不同
有效市场的四个含义
3.1 market prices are efficient with respect to publicly known info
3.2 市场有效是个相对的概念,对新消息做出调整
3.3 investing is a fair game 如果市场有效
3.4 有效市场下,证券的市价fluctuate randomly over time
1. efficiency 意味着重要的是内容,而非披露的form or location.
2. 会计人员竞争提供信息更useful, timely and cost effective
critically discuss that 有效市场意味着投资者对于审计过的财务报表的需求很低
1. prices already incorporate all known information about the firm.
information asymmetry -- inside info
2. 会计政策和方法都不同,所以投资者不要财务info
3. 可以得到其他类型的info, 比会计信息更timely
4. CAPM用beta和the return on market
portfolio来决定returns, 不再需要会计信息
The information approach
to decision usefulness
part 4 The measurement approach
to decision usefulness
Past Paper Q2
outline the information approach
1. Assuming securities market efficiency, markets
may react to information from any source.
2. the information approach 定义
3. the historical cost-based accounting
4. 投资者根据获得的info assess the future
performance;the form and location
不影响,even supplementing the
statements with notes or additional info.
outline the measurement approach
1. greater use of fair value in financial statements
2, the measurement approach 书上定义
3. 做更好prediction for investors
compare and contract these two approaches
and which best for IASB
IASB continues to increase fair value
measurements in financial statements 四大原因
1. markets are not fully efficient
2. low explanatory power of net income for share returns
3. auditors' liability
4. Ohlson's clean surplus theory provided a theoretical
framework supportive of a measurement approach
对比
The effect on decision usefulness depend
on its effect on relevance and reliability
accountants are recognising an increased
obligation to measure and report on firm risk
increase the relevance of financial statement info
reliability
market is not fully efficient 四大原因
1. limited attention
2. overconfident
3. representativeness
4. self-attribution bias
Market response to accruals
Past paper Q3
explain and distinguish the concepts of accruals and cash flow
1. accruals 概念
2. cash flows 概念
discuss whether accruals provide more
useful information than cash flows
1. sloan 的研究
2. non-discretionary accruals
and discretionary accruals
the value relevance of financial statement information
Past paper Q5
describe how researchers examine
whether info is 'value relevant'.
1. value relevance 定义
2. Ball and Brown 研究
critically discuss value relevance
research 对会计准则制定有用么
suggests lots of scope to
improve financial reporting
prospect theory
Part 5 economic consequences and positive accounting theory
Conservatism
Past Paper Q4
Explain conditional and unconditional
conservatism, giving examples.
1. conditional conservatism
1.1 定义 an economic loss in value has already
occurred, although it has not been realized.
1.2 For example, the rule of the lower of cost or market value. This is a
partial measurement approach as balance sheet sometimes recognises
inventoey at market value. Losses must be recognised immediately; but
gains not recognised until goods are sold.
1.3 when current value has decreased, writing assets down to current value
benefits the investors by avoiding the utility loss, thereby decreasing the likelihood
of investor suing the auditor. Regulators, who would also like to see fewer
investor losses and lawsuits, will encourage conservatism to managers to release
bad news and make a new accounting standard such as impairment tests.
2. unconditional conservatism
2.1 定义 risky assets are valued at less than current value,
even though an economic gain or loss has not yet take place.
2.2 For example, recording profitable capital assets at cost even though
current value is higher; retaining inventories at historical cost until reliable
evidence of realization is obtain; writing research costs off as incurred; and
amortization expense may run ahead of economic depreciation.
Discuss whether conservatism is useful
to providers of debt and equity finance
3.1 reduce legal liability
3.2 an early warning system of
impending financial distress
3.3 also for stewardship purpose
economic consequences: is a concept that asserts that,
despite the implications of efficient securities market
theory, accounting policy choice can affect firm value.
the change of accounting policy
not fully efficient market
change the reported earnings, then
securities price reaction - cost of capital
fully efficient market
affect real management decisions (Employee
Stock Options - give them the right to buy
company stock over some time period)
Positive Accounting Theory
predicting such action as
the choices of accounting
policies by firm managers
and how managers will
respond to proposed new
accounting standards.
PAT 认为firms organise
themselves in the most
efficient manner so as
to maximize their
prospects for survival.
Efficient contracting
a firm is viewed as a nexus of contracts.
(employees, suppliers, capital providers)
the firm wants to minimize the various contracting costs
including: cost of negotiation, costs arising from
moral hazard and monitoring of contract
performance, costs of possible renegotiation or
contract violation when unanticipated events arise
during the term of contract, and expected costs of
bankrupty and other typed of financial distress.
as an example, contracts often depend on accounting variables, such as reported net
income or debt-to-equity. such contracts can be in force for a long time and it is difficult
to anticipate changes in IASB that might take place over the life of the contract and allow
for them in the contract itself. As a result, if IASB does change, this can affect the amount
of manager compensation and include technical vialation of debt covenants, both of which
can impose costs on the firm.
managers - manage accruals or change policies
opportunistic form of PAT: in their own interest
Explain why managers would rather have the freedom to choose their
accounting policies rather than have them imposed on them by the IASB
managers are motivated to minimise the cost
PAT
三个 Assumption
managers are rational. like investors, it implies
conflict between interests of managers and investors
efficient securities markets
efficient managerial labour markets.
但是经理的努力和能力不能直接observable (moral
hazard); stewardship role
Bonus plan hypothesis
Debt covenant hypothesis
Political cost hypothesis
Part 6 Earnings management
定义:is the choice by a
manager of accounting
policies or real actions,
affecting earnings so as to
achieve some specific
reported earning objective.
accounting policy choices
real variables
Past Paper Q6
Describe the patterns and the motivations
four patterns
1.1 taking a bath
发生在organizational stress or restructuring
时期,如果企业必须报告a loss,管理层就会报告a large one
clean the desk, write off assets, provide for expected future
costs,增加未来盈利的可能性。over-provision at time t enhances the
profitability at t+1
1.2 income minimization
类似洗大澡,但没有那么extreme;may be chosen be a
politically visible firm during periods of high profitability
方法有:rapid writeoffs of capital assets
and intagibles, 费用化广告费用和R&D花费
1.3 income maximization
经理会增加收入来增加bonus,但不会put
them above the cap
当企业 are close to debt covenant
violations,也会增加income
1.4 income smoothing
from a contracting perspective, risk-averse
managers prefer a less variable bonus stream.
the more volatile the stream of reported net income, the
higher the probability that covenant violation will occur.