We analyse the increase in sales of Pick 3 and Pick 4 daily numbers lottery games and other Ohio Lottery games after Ohio introduced midday drawings for the Pick 3 and Pick 4 games in August 1999. The midday drawings increased Pick 3 sales by 5%, Pick 4 sales by 12%, and total lottery sales by...

An environment is analyzed in which agents join clubs (payment networks) in order to facilitate trade. The networks compile personal identifying data (PID) so as to match transactors to transactions histories. Technological limitations cause the networks' data management practices to impact each...