TY  - JOUR
AU  - Ju,Jiandong
AU  - Krishna,Kala
TI  - Evaluating Trade Reform Using Ex-Post Criteria
JF  - National Bureau of Economic Research Working Paper Series
VL  - No. 6152
PY  - 1997
Y2  - August 1997
UR  - http://www.nber.org/papers/w6152
L1  - http://www.nber.org/papers/w6152.pdf
N1  - Author contact info:
Jiandong Ju
Department of Economics
University of Oklahoma
Norman, OK  73019
E-Mail: jdju@ou.edu

Kala Krishna
Department of Economics
523 Kern Graduate Building
The Pennsylvania State University
University Park, PA 16802
Tel: 814/865-1106
Fax: 814/863-4775
E-Mail: kmk4@psu.edu
AB  - In contrast to existing work which takes an ex-ante approach and looks for policy prescriptions which yield welfare improvements, we take an ex-post approach.  We ask whether there are indicators which show whether welfare has risen or not in the wake of a reform.  That is, we look for evidence of welfare improvements in outcome space.  Necessary and sufficient conditions for welfare improving trade reform are derived.  These conditions are shown to be useful in evaluating Free Trade Areas and in reforming Article XXIV of GATT.
ER  -