scholarly journals American Economic Journal: Applied Economics

2018 ◽  
Vol 108 ◽  
pp. 660-667
Keyword(s):  
Applied Economics ◽  
Economic Journal

scholarly journals Randomization Inference with Stata: A Guide and Software

2017 ◽  
Vol 17 (3) ◽  
pp. 630-651 ◽  
Author(s):  
Simon Heß
Keyword(s):  
Social Sciences ◽  
Laboratory Experiments ◽  
Applied Economics ◽  
Small Samples ◽  
Randomization Tests ◽  
P Values ◽  
Software Packages ◽  
Individual Program ◽  
Randomization Inference ◽  
Economic Journal

Randomization inference or permutation tests are only sporadically used in economics and other social sciences—this despite a steep increase in randomization in field and laboratory experiments that provide perfect experimental setups for applying randomization inference. In the context of causal inference, such tests can handle problems often faced by applied researchers, including issues arising in the context of small samples, stratified or clustered treatment assignments, or nonstandard randomization techniques. Standard statistical software packages have either no implementation of randomization tests or very basic implementations. Whenever researchers use randomization inference, they regularly code individual program routines, risking inconsistencies and coding mistakes. In this article, I show how randomization inference can best be conducted in Stata and introduce a new command, ritest, to simplify such analyses. I illustrate this approach's usefulness by replicating the results in Fujiwara and Wantchekon (2013, American Economic Journal: Applied Economics 5: 241–255) and running simulations. The applications cover clustered and stratified assignments, with varying cluster sizes, pairwise randomization, and the computation of nonapproximate p-values. The applications also touch upon joint hypothesis testing with randomization inference.

scholarly journals Kleiner Kredit mit grosser Wirkung?

2021 ◽  
pp. 169-173
Author(s):  
Arnaud Schuele
Keyword(s):  
Applied Economics ◽  
Nachhaltige Entwicklung ◽  
Randomized Evaluation ◽  
Economic Journal

ZusammenfassungWohlstand entsteht aus Arbeit, Investition und Unternehmertum. Aber wo Armut herrscht, scheitert der Traum vom Aufstieg allzu oft an der Finanzierung, gerade in den Entwicklungsländern. Kleine Kredite könnten grosse Wirkung haben und eine nachhaltige Entwicklung anstossen. Die Realität der Mikrofinanz ist allerdings weniger beeindruckend und lässt zweifeln, dass es allein mit der Bereitstellung von Krediten getan ist. Vielleicht braucht es vorher mehr Bildung, Unternehmergeist und eine Änderung der Rollenbilder, damit nachher die Mikrofinanz bessere Ergebnisse zeitigen kann?Banerjee, A., E. Duflo, R. Glennerster und C. Kinnan (2015), The Miracle of Microfinance? Evidence from a Randomized Evaluation, American Economic Journal: Applied Economics 7, pp.22–54.

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