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2SPS and 2SRI for logistic binary outcomes have not been thoroughly studied. We study the bias and variance properties … trial. We first present closed form expressions of asymptotic bias for the causal odds ratio from both 2SPS and 2SRI … approaches. Our closed form bias results show that the 2SPS logistic regression generates asymptotically biased estimates of this …
Persistent link: https://www.econbiz.de/10009439053
alternatives can seriously bias the evaluation of consequences in risky high-stakes decisions. …
Persistent link: https://www.econbiz.de/10009441242
alternatives can seriously bias the evaluation of consequences in risky high-stakes decisions. …
Persistent link: https://www.econbiz.de/10009441300
Over the past 30 years, a widely accepted model of "open-access" fisheries has been developed, yet empirical tests of the standard model have been relatively few. One difficulty is that fish stocks, the levels of which affect the rate of catch, are not directly observable. Simplifying...
Persistent link: https://www.econbiz.de/10009444643
Choice Experiments (CE) are increasingly used to estimate the values of environmental goods andservices. CE questionnaires represent the environmental good under valuation by varying levels ofnon-market attributes. Inclusion of a cost attribute enables the estimation of monetary values...
Persistent link: https://www.econbiz.de/10009446025
bias preventive approach developed by Firth (1993) to handlethe bias of an estimator of the log-odds ratio parameter in … conditional logistic regression bysolving a modified score equation. The resultant estimator not only reduces bias but alsocan …
Persistent link: https://www.econbiz.de/10009464883
This paper reports on the results from a split sample choice experiment, where the effect of changing the maximum level of the cost attribute is investigated. The hypothesis was that changing the maximum price level would either give rise to an income effect or have no effect on consumers'...
Persistent link: https://www.econbiz.de/10009448676
Die Ertragskrise der Forstwirtschaft wirkt indirekt auf das Erholungsangebot des Waldes. Erholungsleistungen, die früher problemlos aus erwirtschafteten Überschüssen bereitgestellt werden konnten, werden in jüngerer Zeit mehr und mehr hinterfragt: Es ist daher naheliegend und von Interesse,...
Persistent link: https://www.econbiz.de/10009448920
as to minimize the effect of variability on precision in estimation and to reduce bias that may arise in hierarchical …
Persistent link: https://www.econbiz.de/10009450913
Two-stage sampling usually leads to higher variances for estimators of means and regression coefficients, because of intra-cluster homogeneity. One way of allowing for clustering in fitting a linear regression model is to use a linear mixed model with two levels. If the estimated intra-cluster...
Persistent link: https://www.econbiz.de/10009457371