ing from Identities (Merge) Abstract State Representation Future work includes research about (effi cient) merging strategies Idea • During the inference, there sometimes are identifying observations that enable to introduce evidence about some entities • Identifying sensors are e.g. ID-card sensors or personal devices, Non-identifying sensors are e.g. presence sensors or light switches • Split...

Radio spectrum is an essential input for delivering mobile communication services. Traditionally blocks of licensed spectrum have been exclusively controlled by its buyer. However, in recent years there has been an increasing focus by regulators on developing policies and practices which ensure a more effi cient utilization of the spectrum resource, among which spectrum sharing is one of the mo...

What makes e-money special relative to cash? How does the introduction of electronic money improve the functioning of a payment system, in which cash is used as an incumbent payment instrument? This paper adopts a mechanism design approach to identify the essential features of e-money that improve the effi ciency of the economy. We build a micro-founded general equilibrium model to compare the ...

We analyze how market design influences the bidding behavior in multiunit procurement auctions where suppliers have uncertain costs and are uncertain about the availability of production units, as in wholesale electricity markets. We find that the competitiveness of market outcomes improves with increased market transparency. We identify circumstances where the auctioneer prefers uniform to dis...

This paper investigates the design of optimal procurement mechanisms in the presence of corruption. After the sponsor and the contractor sign the contract, the latter may bribe the inspector to misrepresent quality. Thus, the mechanism affects whether bribery occurs. I show how to include bribery as an additional constraint in the optimal-control problem that the sponsor solves, and characteriz...

We analyze the welfare consequences of a monopolist having additional information about consumers’tastes, beyond the prior distribution; the additional information can be used to charge different prices to different segments of the market, i.e., carry out "third degree price discrimination". We show that the segmentation and pricing induced by the additional information can achieve every combin...

In this paper, we present a directed search model of the housing market. The pricing mechanism we analyze reflects the way houses are bought and sold in the United States. Our model is consistent with the observation that houses are sometimes sold above, sometimes below, and sometimes at the asking price. We consider two versions of our model. In the first version, all sellers have the same res...

Methods and techniques for clinical trials on antimalarial drug effi cacy: genotyping to identify parasite populations: informal consultation organized by the Medicines for Malaria Venture and cosponsored by