Beyond Publication Bias
介绍了几种元回归和图形方法,用于区分真正的实证效应与发表偏倚,并应用于最低工资效应、工会生产率效应等四个经济学研究领域。
This review considers several meta-regression and graphical methods that can differentiate genuine empirical effect from publication bias. Publication selection exists when editors, reviewers, or researchers have a preference for statistically significant results. Because all areas of empirical research are susceptible to publication selection, any average or tally of significant/insignificant studies is likely to be biased and potentially misleading. Meta-regression analysis can see through the murk of random sampling error and selected misspecification bias to identify the underlying statistical structures that characterize genuine empirical effect. Meta-significance testing and precision-effect testing "PET" are offered as a means to identify empirical effect beyond publication bias and are applied to four areas of empirical economics research - minimum wage effects, union-productivity effects, price  elasticities, and tests of the natural rate hypothesis. Copyright Blackwell Publishers Ltd, 2005.