Rent-seeking behaviour of retaliating agents

This paper has examined a rent-seeking game where the players take a more sophisticated approach to evaluating the potential strategies and counter-strategies of their rivals than in the standard Nash case. We have derived the conditions for the existence of symmetric and nonsymmetric equilibria for the game and derived the properties of these equilibria. Three results merit repeating. First, we find that rent dissipation will not, in general, be complete. Second, and in contrast to much of the traditional literature, we find that the socially optimal result of zero rent-seeking is sometimes a feasible equilibrium outcome for our game. Finally, there exist rent-seeking configurations in which the best play of one of the rivals is to withdraw from the game or, alternatively stated, where it is not optimal for a rival to contest the rent by entering the game. In these nonsymmetric cases it would appear that Tullock's conjecture about the value of preemptive moves remains valid. This is true even when the strategies and counter-strategies available to the players are much more complex than in the traditional Nash approach.As a final point we raise the issue of whether or not it is reasonable to suppose that the players in rent-seeking games will take their strategy and counter-strategy sets to be as large as we have assumed in this paper. Players may well make their moves and counter-moves based upon rules of thumb or other considerations that effectively bound the strategy sets of the players. As well, it may be useful to consider games where players, upon entering the game, commit themselves to a given level of expenditures. Many of these issues are considered in a related paper by the authors.     

Distinguishing accurate from inaccurate eyewitness identifications with an optional deadline procedure

Abstract

Two experiments examined the efficacy of an optional deadline lineup procedure for distinguishing correct from incorrect eyewitness identification decisions. The procedure involved briefly presenting the lineup, removing the lineup from view, then giving participants the option of either making an identification decision or viewing the lineup again. When compared with participants operating under a forced deadline (i.e. forced to respond after the brief presentation) or standard lineup instructions, the optional deadline procedure identified participants with an impressive probability of having made a correct identification when used with target-present lineups and biased instructions. With unbiased instructions, the optional deadline produced clear discrimination between correct and incorrect identification decisions for choosers and, importantly, also for non-choosers. Possible strategies for improving the efficacy of the procedure are suggested.     

Mehr Zuwanderer,mehr Fremdenangst? Ein Überblick über den Forschungsstand und ein Erklärungsversuch aktueller Entwicklungen in Deutschland

The share of residents with foreign roots in Germany will rise considerably in the next years. A crucial societal question will certainly be whether natives will get used to the increasing level of ethnic diversity or whether anti-immigrant threat perceptions will rise. There is an obvious empirical paradox in the context of this question: On the one hand, high immigration usually coincides with more skeptical views towards immigration and greater success for right-wing political parties. On the other hand, these reactions are often over-represented in regions where the actual share of migrants is rather low. This paper presents an overview of theories and evidence on this apparent contradiction. A crucial factor which can at least partially reconcile these ambivalent findings is the geographic level of analysis: If the national share of migrants increases, media coverage of the topic is greater and fears among the population accordingly rise in most cases. On the level of regions, however, effects of contact and habituation are strongest, such that people living in high-immigrant regions tend to perceive immigration in a more positive way. On the level of city districts, the relationship seemingly turns negative again. Here, the more tolerant citizens live in residential areas with a low to moderate share of migrants, while natives living in districts with many foreigners tend to move away or vote for far-right parties, as the success of the “Alternative for Germany” (AfD) in the 2016 state elections suggests. A number of conclusions can be drawn with regard to current developments in Germany.     

Trust in Politicians and Satisfaction with Government – A Reciprocal Causation Approach for European Countries

Trust and satisfaction with the government are the most important indicators of a functioning democratic system. Scholars diverge in their opinions of whether satisfaction causes trust or vice versa or whether both variables reinforce each other simultaneously. This study applies an instrumental variable approach to shed light on this discussion. We employ a sample of 7166 individuals in 3 European countries (i.e., Germany, France, and Great Britain) obtained from the European Social Survey to test this reciprocal relationship. By comparing these three countries with fundamentally different political systems, we investigate the contingency of the reciprocal effect with regard to the political context. The results confirm the reciprocal relationship but reveal differences between the three investigated countries.     

Designing safe citizens

Modern liberal citizenship is a failing design, and this is nowhere more apparent than in the contemporary US. Currently there is a frenzy around US citizenship – who has it but shouldn't have it, who should have it but doesn't have it, who had it but renounced it. The sheer volume of ideas, images, and events and their mass circulation makes it almost impossible not to notice how unsettled and unsettling contemporary US citizenship has become. If, as designer Bruce Mau suggests, the success of a design is its invisibility, then it seems that the design of contemporary US citizenship is anything but a success. Taking seriously the claim that modern liberal citizenship is a failing design, this article focuses on how citizenship is designed and redesigned through history. Its central research question is: what are the design principles of modern liberal citizenship, and how are they experienced in the contemporary US? Noting that modern liberal citizenship emerged from state security debates and that security concerns preoccupy those in the contemporary US, this article investigates not only how citizenship is designed but how safe citizenship is designed. As such, it is less concerned with the legal definition of citizenship than with the practical packaging of citizenship as part of a design for safe living.     

A Small Population Study on Friction Skin Ridges: Differences in Ridge Widths Between Latent and Inked Fingerprints

Morphological changes in the width of latent fingermark ridges occur naturally over time. This could be used to examine the aging process of latents and eventually estimate time of deposition. In a crime context, it is common practice to compare a questioned (aged) fingermark with a database of known (inked) prints. Therefore, in the absence of fresh fingermarks for aging purposes, it is of interest to reveal correlations between these two categories of fingerprints with regard to the widths of their ridges. The present study explores correlations of ridge widths between flat and rolled inked prints with latent fingermarks visualized with carbon black (CB) and titanium dioxide (TiO₂)-based powders among a small population of ten donors. Results revealed consistent differences between the ridge widths of latent and inked prints as well as flat and rolled impressions. Latent fingermarks visualized with CB and TiO₂ powders showed ridges with comparable widths.     

Books in review

His most recent books are The Hollow Years: France in the 1930s,and Movements, Currents, Trends.