TY  - BOOK
AU  - Alt James E
AU  -  Shepsle Kenneth A
TI  - Perspectives on positive political economy
T2  - Political Economy of Institutions and Decisions
U1  - X, N0 
PY  - 1990///
CY  - Cambridge
PB  - Cambridge University Press        
KW  - Economic Theory
N1  - Bibliography:P245-55
ER  -