I describe and compare sources of data on citations in economics and the statistics that can be constructed from them. Constructing data sets of the post-publication citation histories of articles published in the "Top 5" journals in the 1970s and the 2000s, I examine distributions and life...

Economists' productivity, as measured by publication in leading journals, declines very sharply with age. Additional evidence shows that this is a rational response to economic incentives and/or changing physical or mental abilities: There is no difference by age in the probability that an...

We make the distinction between bequests that are planned as part of some lifetime optimization stemming from a bequest motive, and those that are unplanned and result when the date of death differs from what the consumer might forecast. Lifetime optimization should lead to a negative effect or...