Several European countries and many Japanese local governments began including endogenous minimum prices (EMPs) in first-price auctions (FPAs) in their public procurements. The EMP is calculated based on its relation to the average of all bids or to some lowest bids. Any bid lower than the EMP...

This paper analyzes an auction mechanism that excludes overoptimistic bidders inspired by the rules of the procurement auctions adopted by several Japanese local governments. Our theoretical and experimental results suggest that the endogenous exclusion rule reduces the probability of suffering...

This paper studies behavior in experiments with a linear voluntary contributions mechanism for public goods conducted in Japan, the Netherlands, Spain and the USA. The same experimental design was used in the four countries. Our 'contribution function' design allows us to obtain a view of...

In this thesis, we study two important features of themarketplace based internet economy-the emergence of informationgatekeepers and the use of auction-like mechanisms to allocate andprice goods sold on the internet.The first essay ``One Auction or Two? Auction with Multiple-units"discusses the...