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1.
In this paper, we discuss the properties of preliminary test estimators (PTE) of the parameters of simple linear model with
measurement error (ME model) when the slope of the linear model is suspected to be zero. Expressions of the bias, MSE and
efficiencies are obtained under conditional as well as unconditional situations with known reliability coefficient. Conditional
model results are compared to the standard model without measurement error. We also provide the unconditional model analysis
in finite samples. Asymptotic theory under local alternatives is developed when the variance of measurement error or the ratio
of the variance of the model error relative to the variance of the measurement error is known. Asymptotic expressions of bias
and MSE of the estimators along with their efficiencies are obtained. In every case, it is shown that the measurement error
tend to increase the variability of the estimators compared to the estimators without measurement error. Graphs and tables
are provided to see these results and to determine optimum level of significance for minimum guaranteed efficiency.
Received October 2001
RID="*"
ID="*" A. K. Md. E. Saleh is a Distinguished Research Professor and H. M. Kim is a Ph.D. candidate in the School of Mathematics
and Statistics, Carleton University, Ottawa.
Acknowledgment. The authors gratefully acknowledge the constructive suggestion of the referees to improve the paper. The research is supported
by NSERC grant A3088. 相似文献
2.
In this study, we analyze the costs incurred by French commercial banks and savings institutions. One of the main distinctions between these two types of financial entities concerns management costs, which are higher for commercial bank demand deposits than for the savings institutions' tax-free livret A passbook accounts. Taking this differential into consideration by constructing separate models based on different principles, we find that the average overall and operating costs of the savings institutions are half those of commercial banks. As regards operating costs, small savings institutions enjoy a significant cost advantage over small commercial banks, but this cost advantage is smaller when one compares the performance of large savings institutions to the large banks. The results of our econometric estimates suggest a possible explanation, as we find increasing returns to scale for the banks and diminishing returns for the savings institutions. The value of the returns-to-scope parameter at the mean point appears to indicate a complementarity between certain pairs of outputs. Therefore, ouptut diversification appears to have a positive impact on cost levels for both savings institutions and commercial banks; while institution size, measured by the total assets, has a different impact in these two industries. 相似文献
3.
Saleh M. Nsouli 《Journal of International Economics》1975,5(3):239-253
An intertemporal model of an open economy incorporating risk in the export price is developed. It is shown how the optimal trajectories for consumption, investment, growth, exports, and resource allocation can be determined using dynamic stochastic programming. The risk sensitivity and time effects of the various trajectories are analyzed for the case of a logarithmic social utility function. Interestingly, the results obtained are not all in conformance with the conventional results of portfolio theory analysis as applied to savings. 相似文献
4.
5.
Neil Buckley Kenneth S. Chan James Chowhan Stuart Mestelman Mohamed Shehata 《Experimental Economics》2001,4(2):183-195
Identifying the value orientations of subjects participating in market or non-market decisions by having them participate in a ring game may be helpful in understanding the behaviour of these subjects. This experiment presents the results of changes in the centre and the radius of a value orientations ring in an attempt to discover if the measured value orientations exhibit income or displacement effects. Neither significant income effects nor displacement effects are identified. An external validity check with a voluntary contribution game provides evidence that value orientations from rings centred around the origin of the decision-space explain significant portions of voluntary contributions while value orientations from displaced rings do not. 相似文献
6.
Fbio Dias Duarte Ana Paula Matias Gama Mohamed Azzim Gulamhussen 《European Financial Management》2020,26(3):628-683
We relate credit risk and owners’ personal guarantees to bank loan maturities during the global financial crisis. The findings, which remain robust to reverse causality, show that firms rated as low risk, with a strong relationship with the bank, whose owners provided personal guarantees and with large loan sizes obtained longer maturities. Banks with larger nonperforming loans provided loans with shorter maturities. Firms with low‐ and high‐risk ratings that provided owners’ personal guarantees obtained longer maturities. These findings shed additional light on the relationship between risk and loan maturities and the role of personal guarantees in reducing information asymmetries. 相似文献
7.
8.
V. Umashanker Trivedi Mohamed Shehata Bernadette Lynn 《Journal of Business Ethics》2003,47(3):175-197
This study used a laboratory experiment with monetary incentives to test the impact of three personal factors (moral reasoning, value orientation and risk preference), and three situational factors (the presence/absence of audits, tax inequity, and peer reporting behavior), while controlling for the impact of other demographic characteristics, on tax compliance. Analysis of Covariance (ANCOVA) reveals that all the main effects analyzed are statistically significant and robustly influence tax compliance behavior. These results highlight the importance of obtaining a proper understanding of these factors for developing effective policies for increasing the level of compliance, and indicate that standard enforcement polices based on punishment alone should be supplemented by an information system that would acquaint tax payers with the compliance level of other tax payers; reinforce the concept of fairness of the tax system among tax payers; and develop programs that enhance and appeal to a taxpayer's moral conscience and reinforce social cohesion. 相似文献
9.
Evidence has shown that parental smoking can cause health problems for children. It might be expected that parents who are aware of the harmful effects of second-hand smoke will reduce their smoking, especially as they have more children. However, based on instrumental variable regressions using data from the 2006 and 2008 Vietnam Household Living Standard Surveys, we find a strongly positive and significant effect of the number of children on the probability of tobacco smoking in households in Vietnam. An additional child increases the probability of tobacco consumption in the household by approximately 15%. These findings imply low levels of awareness of the harmful effects of second-hand smoke on children’s health in Vietnam, and indicate the need for policy action to disseminate knowledge on the harmful effects of smoking. 相似文献
10.
Mohamed A. Abou-Shouk 《Journal of Travel & Tourism Marketing》2018,35(2):178-188
ABSTRACTDestination management organizations (DMOs) have an important role in engaging stakeholders in collaboration. Collaborating with stakeholders is useful for both stakeholders and destinations. However, it takes time and needs rigorous coordination to avoid conflicts with stakeholders. This study measures travel agencies’ attitudes towards engaging in online collaboration with DMOs for marketing purposes. It incorporates collaboration and technology acceptance models to predict the attitudes and intentions of travel agents using structural equation modeling. Data were collected from travel agents in Cairo, Egypt, using the random sample technique. This study will be useful for travel and tourism stakeholders and governmental marketing bodies. 相似文献