An experimental study of coordination and learning in iterated two-market entry games

Summary. Tacit coordination in large groups is studied in an iterated market entry game with complete information and multiple market capacities that are varied randomly from period to period. On each period, each player must decide independently whether to enter any of the markets, and if entering, which of the two markets to enter. Across symmetric and asymmetric markets, we find remarkable coordination on the aggregate level, which is accounted for by the Nash equilibrium, together with considerable individual differences in frequency of entry and decision rules. With experience, the decisions of most players converge to decision rules with cutoff values on the combined market capacity that determine whether or not to enter but not which of the two markets to enter. This latter decision is determined probabilistically by the differential market capacities. The aggregate and individual results are accounted for quite well by a reinforcement-based learning model that combines deterministic and probabilistic elements.     

Critical Success Factors of Service Orientation in Information Systems Engineering

Service orientation has been a major buzz-word in recent years. While the buzz is on a decline, organizations are slowly, but steadily moving towards service oriented designs. However, service orientation turns out to be as much of a managerial challenge as of a technical one. The most important complexity drivers in the service oriented design of information systems seem to be (a) inconsistent design goals of stakeholders and (b) the pursuit of exhaustive service orientation coverage. This research focuses on the following two questions: (1) What are the characteristics of successful implementations of service oriented information systems, and (2) what are the critical success factors influencing, driving and/or, determining these characteristics? Data of an empirical analysis is used to test a set of cause-effect relationship hypotheses based on nine latent variables. In the core of this model we differentiate the variables “overall service orientation infrastructure success” and “service orientation project success”. The hypothesized interrelationships between the nine variables lead to a causal model which is proven to hold.     

Multi-stage voting, sequential elimination and Condorcet consistency

A class of voting procedures based on repeated ballots and elimination of one candidate in each round is shown to always induce an outcome in the top cycle and is thus Condorcet consistent, when voters behave strategically. This is an important class as it covers multi-stage, sequential elimination extensions of all standard one-shot voting rules (with the exception of negative voting), the same one-shot rules that would fail Condorcet consistency. The necessity of repeated ballots and sequential elimination are demonstrated by further showing that Condorcet consistency would fail in all standard voting rules that violate one or both of these conditions.     

Veto power in committees: an experimental study

Veto power consists of the right of one or more players to unilaterally block decisions but without the ability to unilaterally secure their preferred outcome. Our experiment shows that (i) committees with a veto player take longer to reach decisions (are less efficient) and generate less consensus than without a veto player, (ii) veto power substantially enhances proposer’s power, and (iii) non-veto players are substantially more willing to compromise than veto players. We relate our results to the theoretical literature on the impact of veto power as well as to concerns about the impact of veto power in real-life committees.     

THE FARM AS A FAMILY BUSINESS: A REVIEW

Although the great majority of UK farms are run as family businesses, the family dimension of these businesses is frequently neglected. There are nevertheless important inferences to be drawn from studying the farm family, its forms and functions, and the way that the family and the business interact. This calls for a multidisciplinary approach and the review attempts to draw together insights from industrial economics, social anthropology, history and rural sociology as they apply to the farm family business. It then relates these insights to considerations of the family development cycle, processes of inheritance and succession, roles of farmers' wives and multiple-job farming families. The literature review points to opposing tendencies within the population of farm businesses. Family forms of organisation and relationships may have become less relevant to farming at the lower end of the size scale but more relevant to the conduct of a successful large farm business.     

Commemoration of the Great War on the Somme: exploring personal connections

This study was undertaken at two sites on the Somme, France, one of the main battlefields of the Great War (1914–1918). It used a quantitative method and sought to explore the relative strength of two bases of personal connection (family and nation) to interests in visiting the area. The impact of attendance at a commemorative event on visitors' battlefield interests was also explored. The sample at the Thiepval memorial was dominated by British visitors and by Australians at Villers-Bretonneux. The analysis indicated that people with close family connections to the war had higher levels of interest in seeing sites of their family's war-time involvement, desire to pay their respects and historical interest. Attendance at a major national event (Anzac Day) appeared to increase national interest in people who did not have family connections.