@conference {Chen:04a,
	title = {Theoretical Investigation of Prediction Markets with Aggregate Uncertainty},
	booktitle = {Proceedings of the Seventh International Conference on Electronic Commerce Research (ICECR-7)},
	year = {2004},
	url = {http://econcs.seas.harvard.edu/files/econcs/files/icecr04.pdf},
	author = {Yiling Chen and Tracy Mullen and Chao-Hsien Chu}
}
