∗ Adapted from Miller and Pincus (1997). Research on this paper was undertaken while Miller was a Visiting Professor at the University of Illinios at Chicago, and Pincus was a Visiting Professor at the University of California at Santa Barbara. We thank two anonymous referees for helpful comments.
Notes
∗ Adapted from Miller and Pincus (1997). Research on this paper was undertaken while Miller was a Visiting Professor at the University of Illinios at Chicago, and Pincus was a Visiting Professor at the University of California at Santa Barbara. We thank two anonymous referees for helpful comments.