Models of market microstructure tell us that a spread is necessary to compensate market makers for order processing costs, inventory risk, and adverse selection. Since entry into market making is relatively easy on the Nasdaq dealer market, and the New York Stock Exchange (NYSE) specialist faces competition from public liquidity suppliers as well as from regional exchanges, competition should a...

We study experimentally how players learn to make decisions if they face many different (normal–form) games. Games are generated randomly from a uniform distribution in each of 100 rounds. We find that agents do extrapolate between games but learn to play strategically equivalent games in the same way. If either there are few games or if access to information about the opponents’ behavior is ea...

Intuitive access to information in real environments is a challenge for Information Society Technologies. Having this in mind, a new device for Mixed Reality applications called Virtual Showcase has been developed. It has been conceived to be used in museums and exhibitions, due to its compatibility with traditional museum showcases, offering additional information to the public by means of a s...

Managing workflows is becoming increasingly flexible on both the conceptual and the technical level. However, workflow flexibility has to be accompanied by comprehensive access to information and the processing of it. Validating compliance is a still disregarded but crucial aspect though in flexible workflows where a lot of information is processed. In this contribution, a novel prototype named...