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Estimating the effect of spillovers on exports: a meta-analysis

Jianhua Duan, Kuntal Das (), Laura Meriluoto () and W. Reed ()
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Jianhua Duan: University of Canterbury

Review of World Economics (Weltwirtschaftliches Archiv), 2020, vol. 156, issue 2, No 1, 219-249

Abstract: Abstract This study uses meta-analysis to study the effect of spillovers on exports. It collects 3291 estimated spillover effects from 99 studies. The estimated spillover effects in the literature span a large number of types and measures of both exports and spillovers. As a result, we transform estimates to partial correlation coefficients. We analyze these transformed effects using four different versions of Weighted Least Squares (WLS) estimators, incorporating both meta-analytic “Fixed Effects” and “Random Effects”. Our analysis produces three main findings. First, while we estimate an overall mean effect of spillovers on exports that is statistically significant, the size of the effect is economically negligible. Second, we find modest evidence for the existence of publication bias in the empirical literature. Publication bias can arise when researchers and journals have a preference to publish articles that find positive and significant results. While some of our tests indicate the presence of publication bias, in every case the size of the effect is small. Third, using both Bayesian Model Averaging and frequentist meta-regression analysis, we find that some data, estimation, and study characteristics are significant in some regressions. However, only a few of the characteristics are robust, and none are large in size.

Keywords: Spillovers; Exports; Meta-analysis; Meta-regression analysis; Bayesian model averaging; Partial correlation coefficient (search for similar items in EconPapers)
JEL-codes: C80 D62 F10 F20 O30 (search for similar items in EconPapers)
Date: 2020
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DOI: 10.1007/s10290-020-00377-z

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