This study addresses the question of what the relative input relationship is between co-authors in economics. Using the direct addilog production function, the partial elasticities of substitution between co-authors are estimated. The empirical results suggest that co-authors in economics are...

This paper shows that a state's abortion policy is determined by the strength of interest advocacy groups and political forces. The greater the membership in the National Abortion Rights Action League, the percentage of female state legislators and the percentage of Democratic female...