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1.
TIMOTHY CONLEY SILVIA GONÇALVES CHRISTIAN HANSEN 《Journal of Accounting Research》2018,56(4):1139-1203
We review developments in conducting inference for model parameters in the presence of intertemporal and cross‐sectional dependence with an emphasis on panel data applications. We review the use of heteroskedasticity and autocorrelation consistent (HAC) standard error estimators, which include the standard clustered and multiway clustered estimators, and discuss alternative sample‐splitting inference procedures, such as the Fama–Macbeth procedure, within this context. We outline pros and cons of the different procedures. We then illustrate the properties of the discussed procedures within a simulation experiment designed to mimic the type of firm‐level panel data that might be encountered in accounting and finance applications. Our conclusion, based on theoretical properties and simulation performance, is that sample‐splitting procedures with suitably chosen splits are the most likely to deliver robust inferential statements with approximately correct coverage properties in the types of large, heterogeneous panels many researchers are likely to face. 相似文献
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This paper shows that low-risk anomalies in the capital asset pricing model and in traditional factor models arise when investors require compensation for coskewness risk. Empirically, we find that option-implied ex ante skewness is strongly related to ex post residual coskewness, which allows us to construct coskewness factor-mimicking portfolios. Controlling for skewness renders the alphas of betting-against-beta and betting-against-volatility insignificant. We also show that the returns of beta- and volatility-sorted portfolios are driven largely by a single principal component, which in turn is explained largely by skewness. 相似文献
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Water temperature is an important factor affecting aquatic life within the stream environment. Cold water species, such as salmonids, are particularly susceptible to elevated water temperatures. This paper examines the economic value of short‐term water temperature forecasts for salmonid management. Forecasts may have economic value if they allow the water resource manager to make better water allocation decisions. This study considers two applications: water releases for management of Chinook salmon in the Klamath River and leasing water from agriculture for management of steelhead trout in the John Day River. We incorporate biophysical models and water temperature distribution data into a Bayesian framework to simulate changes in fish populations and the corresponding benefit from recreational fishing and opportunity cost of water under different temperature forecast accuracies. Simulation results indicate that use of the forecasts results in increased fish production and that marginal costs decline and net benefits increase as forecast accuracy increases, suggesting that provision and use of such stream temperature forecasts would have value to society. (JEL Q22, Q25, Q28, Q50) 相似文献
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CHRISTIAN C. P. WOLFF 《The Journal of Finance》1987,42(2):395-406
In this paper, we implement a methodology to identify and measure premia in the pricing of forward foreign exchange that involves application of signal-extraction techniques from the engineering literature. Diagnostic tests indicate that these methods are quite successful in capturing the essence of the time-series properties of premium terms. The estimated premium models indicate that premia show a certain degree of persistance over time and that more than half the variance in the forecast error that results from the use of current forward rates as predictors of future spot rates is accounted for by variation in premium terms. The methodology can be applied straightforwardly to the measurement of unobservables in other financial markets. 相似文献
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This paper reports the results of a study on the usefulness of typical social disclosures from corporate annual reports for investment decision-making. Rather than seek to solely survey respondents about their stated behaviour, the present study also seeks to examine if narrative social disclosures in the annual report actually impact on the behaviour of how investors allocate their investment funds. The experiment provides a basis for assessing the magnitude of any decision impacts. The results indicate that from a sample of sophisticated users (accountants and investment analysts) social disclosures from annual reports do not elicit any more than a 15% switch in investment funds. Furthermore, the switch in funds is not always in favour of the company providing the information. Consistent with these behavioural reactions the survey evidence also reveals moderate attitudes to the decision usefulness of narrative social disclosures for investment decision making. 相似文献
7.
HOLGER DASKE LUZI HAIL CHRISTIAN LEUZ RODRIGO VERDI 《Journal of Accounting Research》2013,51(3):495-547
This study examines liquidity and cost of capital effects around voluntary and mandatory IAS/IFRS adoptions. In contrast to prior work, we focus on the firm‐level heterogeneity in the economic consequences, recognizing that firms have considerable discretion in how they implement the new standards. Some firms may make very few changes and adopt IAS/IFRS more in name, while for others the change in standards could be part of a strategy to increase their commitment to transparency. To test these predictions, we classify firms into “label” and “serious” adopters using firm‐level changes in reporting incentives, actual reporting behavior, and the external reporting environment around the switch to IAS/IFRS. We analyze whether capital‐market effects are different across “serious” and “label” firms. While on average liquidity and cost of capital often do not change around voluntary IAS/IFRS adoptions, we find considerable heterogeneity: “Serious” adoptions are associated with an increase in liquidity and a decline in cost of capital, whereas “label” adoptions are not. We obtain similar results when classifying firms around mandatory IFRS adoption. Our findings imply that we have to exercise caution when interpreting capital‐market effects around IAS/IFRS adoption as they also reflect changes in reporting incentives or in firms’ broader reporting strategies, and not just the standards. 相似文献
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We explore how optimal information choices change the predictions of strategic models. When a large number of agents play a game with strategic complementarity, information choices exhibit complementarity as well: if an agent wants to do what others do, they want to know what others know. This makes heterogeneous beliefs difficult to sustain and may generate multiple equilibria. In models with substitutability, agents prefer to differentiate their information choices. We use these theoretical results to examine the role of information choice in recent price-setting models and to propose modelling techniques that ensure equilibrium uniqueness. 相似文献
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The fact that investment policies are often restricted appears to have been neglected in the performance measurement literature. This paper, using a standard information model, shows how the introduction of constraints on the proportion of assets to be invested in the market affects the expected portfolio returns and the value of a portfolio manager's performance. The results are related to the classical Treynor and Mazuy (1966) conjectures about characteristic lines. 相似文献