This paper provides an overview on the simulations andexperiments we have done in order to better understandhuman-agent interaction in a market environment. We findthat the introduction of software agents does not necessarilyinduce a more efficient market. More surprisingly,information on the...

This paper investigates distributive justice using a fourfold experimental design:The ignorance and the risk scenarios are combined with the self-concernand the umpire modes. We study behavioral switches between self-concernand umpire mode and investigate the goodness of ten standards of...

Dynamics of compliance, depending on audit probability, sanctions, and the time lagbetween audits, are investigated in a tax experiment. Compliance varied significantlyover time: it decreased immediately after an audit and increased afterwards, especially if audits were frequent and sanctions high.

In experimental bargaining with incomplete information, we vary the information distribution (symmetric and asymmetric), the direction of electronic prepaycommunication (no, one-way, and two way), and the electronic communication medium (email and video) Bargainig outcomes are influenced by the...

We consider a society composed of two regions. Each of them pro-vides a public good whose benefits reach beyond local boundaries.In case of decentralization, taxes collected by members of a regionare spent only on that region's public good. In case of centralization, tax receipts from the two...

A vast literature shows that individuals frequently fail to identify the normative solutionsin logical reasoning tasks. Much attention has been devoted to the study ofthese deviations at the individual level; less effort was exerted to investigate whetherinstitutional settings might facilitate...

An empirically well-established finding is that equity portfolios are concentratedin the domestic equity market of the investor. Previous theoreticaland empirical analyses have mainly focused on institutional explanations andlargely neglected individual behavior. In this study we report the...

In a cascade experiment subjects are confronted with artificial predecessors prdecting in line with the BHW model (Bikhchandandi, Hirshleifer and Welch, 1992). Using the BDM mechanism we study subjects' probability assignments based on price limits for participating in the prediction game. We...

We examine the explanatory power of cascade models by implementing the BDM-mechanism in a simple cascade experiment in which subject have to decide on the prediction of a randomly choasen urn. Assigned price limits to participate in the prediction game are used as indicators of subjective...

A great deal of late bidding has been observed on internet auctions such as ebay, which employ a second price auction with a fixed deadline. Much less late bidding has been observed on internet auctions such as those run by Amazon, which employ similar auction rules, but use an ending rule that...