We experimentally investigate the effect of population viscosity (an increased probability to interact with others of one's type or group) on cooperation in a standard prisoner's dilemma environment. Subjects can repeatedly choose between two groups that differ in the defector gain in the...

Spectrum auctions are multiple-unit auctions where the objects auctioned are not necessarily identical. It is shown that the requirement of independent bids in such auction can prevent the existence of pure strategy equilibria (which implies inefficiency). Thus, we suggest that spectrum auctions...

We experimentally study behavior in a simple voting game where players have private information about their preferences. With random matching, subjects overwhelmingly follow the dominant strategy to exaggerate their preferences. Applying the linking mechanism suggested by Jackson and...

We present laboratory experiments of five different multi-unit auction mechanisms. Two units of a homogeneous object were auctioned off among two bidders with flat demand for two units. We test whether expected demand reduction occurs in open and sealed-bid uniform-price auctions. Revenue...

We analyze a market game where firms choose capacities under uncertainty about future market conditions and make output choices after uncertainty has unraveled. We show existence and uniqueness of equilibrium under imperfect competition and provide an intuitive characterization of equilibrium...

In this paper we analyze incentives to invest in capacity prior to a sequence of Cournot spot markets with varying demand. We compare equilibrium investment in the absence and in presence of the possibility to trade on forward markets. We find that the access to strategic devices (such as...

In this paper we analyze incentives to invest in capacity prior to asequence of Cournot spot markets with varying demand. We compareequilibrium investment in the absence and in presence of the possibility to tradeon forward markets. We find that the possibility to trade forwards...

This paper theoretically and experimentally explores a fixed price mechanism inwhich, if aggregate demand exceeds supply, bidders are proportionally rationed. Ifdemand is uncertain, in equilibrium bidders overstate their true demand in order toalleviate the effects of being rationed. This effect...