Information systems and the Internet have facilitated the creation ofused-product markets that feature a dramatically wider selection, lowersearch costs, and lower prices than their brick-and-mortar counterpartsdo. The increased viability of these used-product markets has causedconcern among...

Constantly rising expenditures for pharmaceuticals require government intervention in firms' pricing decisions. To this end, reference pricing systems are a frequently employed regulatory mechanism. This paper considers a duopoly market with vertically differentiated firms under different...

Constantly rising expenditures for pharmaceuticals require government intervention in firms' pricing decisions. To this end, reference pricing systems are a frequently employed regulatory mechanism. This paper considers a duopoly market with vertically differentiated firms under different...

This paper analyses market efficiency and the role of the virtual location in digital markets using a data set containing more than 23,000 price observations from the online market for contact lenses as well as detailed information about online retailer and product characteristics. The data...

This paper proposes the Shannon entropy as an appropriate one-dimensional measure of behavioural trading patterns in financial markets. The concept is applied to the illustrative example of algorithmic vs. non-algorithmic trading and empirical data from Deutsche Börse's electronic cash equity...

We investigate the sensitivity of consumer surplus estimates to parametric assumptions on individual preference heterogeneity in a discrete choice framework. We compare results from a parametric random coefficients logit model and a recently proposed nonparametric sieve estimator. In particular,...