Die gängigen Ladenformate sind in Orten mit weniger als 2.500 Einwohnerinnen und Einwohnern kaum noch wirtschaftlichzubetreiben. Der resultierende Rückzug aus der Fläche bietetim Sinne der Spiraltheorie neue kommerzielle Möglichkeiten für innovative Angebotsformen, wie personalfreie...

It is widely agreed that randomized controlled trials - social experiments - are the gold standard for evaluating social programs. There are, however, many important issues that cannot be tested using social experiments, and often things go wrong when conducting social experiments. This paper...

When evaluating a pilot or demonstration program, there are risks from drawing inferences from a single test. This paper reviews the experiences of replication efforts from demonstrations using randomized controlled trials in the initial evaluation and the replications. Although replications of...

The most important economic measures are monetary. They have many different names, are derived in different theories and employ different formulas; yet, they all attempt to do the same thing: to separate a change in nominal value into a 'real part' due to the changes in quantities and an...

This paper examines the impact of introducing high-speed trains on consumer welfare, taking the ensuing changes in train schedules into account. Based on the estimated demand model for travel which incorporates consumer's heterogeneous preferences for travel schedules into the standard...

This paper addresses two central questions in markets with adverse selection: How does information impact the welfare of market participants (sellers and buyers)? Also, relatedly, what is the optimal information disclosure policy and how is it affected by the planner’s relative welfare weight...

Merger control plays a central role in competition policy. When assessing proposed mergers, Competition Authorities should consider its impact on all relevant markets. Large mergers between manufacturers typically impact competition, thus requiring the approval of Competition Authorities....

Im Rahmen der Wettbewerbspolitik spielt neben dem Kartellverbot und der Missbrauchsaufsicht die Fusionskontrolle eine zentrale Rolle. Fusionen zwischen großen Herstellern beeinflussen typischerweise den Wettbewerb und müssen daher von den Wettbewerbsbehörden genehmigt werden. Dabei sind...

Aim: The main objective of the paper was to calculate social savings (and consumer surplus) of innovation on the example of railroads in Germany for 1985. The railways were among the most important innovations in the nineteenth century. Being aware of the limits of the social savings technique,...