The authors address the following two fundamental questions in the theory of exact aggregation: (1) What restrictions, if any, need to be imposed on the vector of aggregates in order that the aggregate demand functional representation be nontrivial and economically interesting? (2) What economic...

We find that individual investors who use technical analysis and trade options frequently make poor portfolio decisions, resulting in dramatically lower returns than other investors. The data on which this claim is based consists of transaction records and matched survey responses of a sample of...

The paper makes four contributions. First, the paper provides new data and findings about credit card usage segmentation in respect to spending and borrowing behavior. Second, it sets the new findings against the backdrop of the newly emerging literature on financial literacy. A great...