Key points are not available for this paper at this time.
Click to increase image sizeClick to decrease image size Notes This paper has benefitted from conversations with Bill Lynn and the comments of Melissa Gilbert, Mike Murashige, Jim O'Connor, Devon Peña, Miguel de Oliver, Margaret Villanueva, and three anonymous reviewers. I remain responsible for all interpretations and shortcomings.
Laura Pulido (1996) studied this question.