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101.
102.
Kathryn J. Chang Doina C. Chichernea Hassan R. HassabElnaby 《Journal of Accounting and Public Policy》2014
Prior research documents that the DuPont components of return on net operating assets (profit margin and asset turnover) represent an incremental source of information about the operating characteristics of a firm and are useful tools for market participants (Soliman, 2008). We find that the informativeness of DuPont components about future profitability is reduced in the healthcare setting, relative to an all-industry sample. Moreover, to the extent that DuPont components are useful for market participants, we show that profit margin is more persistent than asset turnover for US for-profit health care providers, which contradicts the results documented in prior literature that considered all industries. We argue that the special features of the health care industry (i.e. heavy regulation, unique operational characteristics) affect the information content of accounting signals obtained based on financial statements. 相似文献
103.
This research reports an assessment of Sweeney and Soutar's (2001) consumer perceived value (PERVAL) scale. The PERVAL scale contains four dimensions: quality, emotional, price, and social values. The present study develops and evaluates two short forms of the original 19-item PERVAL scale based on Sweeney and Soutar's (2001) original data and three other studies in two different countries. In comparison with the full scale, the short 12-item and 8-item forms have equally good dimensional properties and equivalent predictive validity. The discussion includes implications, both for research and for retail managers. 相似文献
104.
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106.
Hassan Benchekroun 《Journal of Economic Dynamics and Control》2011,35(4):479-490
We show that the imposition of a Markovian tax on emissions, that is, a tax rate which depends on the pollution stock, can induce stable cartelization in an oligopolistic polluting industry. This does not hold for a uniform tax. Thus, accounting for the feedback effect that exists within a dynamic framework, where pollution is allowed to accumulate into a stock over time, changes the result obtained within a static framework. Moreover, the cartel formation can diminish the welfare gain from environmental regulation such that welfare under environmental regulation and collusion of firms lies below that under a laissez-faire policy. 相似文献
107.
108.
If options are correctly priced, the interpretation of volatility in the Black–Scholes model (as identifying the volatility of the underlying asset) is violated. The empirical relation between the model ‘implied volatility’ and the degree to which the option is in-the-money (moneyness) has been reported as resembling a U-shape (or ‘smile’) for options on currencies (and more of a ‘smirk’ for options on equities). In this article, using multivariate time-series analysis and employing an impulse response function, we investigate the structural relationships and dynamics of the volatility smile in relation to the option liquidity, key features of the underlying asset and market momentum. Our findings confirm evidence of a number of biases in the Black–Scholes model consistent with Chou et al. (2011) in regard to liquidity in both the underlying and the option itself, and with Peña et al. (1999) as to the importance of the option time to maturity. As well as delineating such biases as they co-relate both with each other and with the underlying asset volatility and momentum, we find that the pronounced smile is related to the differential sensitivities of in-the-money and out-of-the-money options, which itself suggests an explanation for the characteristic smile shape. 相似文献
109.
In 1983 the government passed legislation implementing a new method of paying hospitals for Medicare inpatient services, the
Prospective Payment System (PPS). Under this system the changes in economic incentives to hospitals affected the market conditions
under which hospitals operate. This article investigates the impact of PPS on the financial riskiness of hospitals. Using
the capital asset pricing model (CAPM), this study analyzes the systematic risk of a portfolio of four publicly traded acute
care hospitals in the pre-PPS and post-PPS periods, as well as four control portfolios. It covers a pre-PPS period from 1976
to the passage of the Tax Equity and Fiscal Responsibility Act (TEFRA) and a post-PPS period through 1988. The systematic
risk for publicly traded acute care hospitals increased significantly in the post-PPS period. However, the control groups
also showed significant changes in systematic risk. 相似文献
110.
Rashid M. Hassan 《Agricultural Economics》1996,15(2):137-149
A fairly comprehensive range of planting choices made by maize farmers in Kenya (including discrete endogenous variables creating self-selectivity) is modelled and estimated as one system of interrelated decisions. Two-stage and three-stage probit procedures are used to handle the simultaneity and self-selectivity problems. Results showed that population pressure and agroclimatic diversity are important determinants of crop intensification and planting regimes among maize farmers and further supported the importance of focusing maize research in terms of agroclimate and socio-economic domains. Shorter maturity and efficient double and multiple cropping methods are needed to increase land productivity and intensity of labour use in areas of high population pressure and bimodal rainfall, i.e. mid-altitude zones. On the other hand, technologies that would lead to increased productivity of capital and higher response to external inputs are desired for the highlands of Kenya. Access to extension and machine services, distance to the maize plot, and time of onset of the rains were also found to significantly influence the planting strategies of maize farmers. 相似文献