Route vs. Segment: An Experiment on Real‐Time Travel Information in Congestible Networks

We report the results of an experimental study of route choice in congestible networks with a common origin and common destination. In one condition, in each round of play network users independently committed themselves at the origin to a three‐segment route; in the other condition, they chose route segments sequentially at each network junction upon receiving en route information. At the end of each round, players received ex‐post complete information about the distribution of the route choices. Although the complexity of the network defies analysis by common users, traffic patterns in both conditions converged rapidly to the equilibrium solution. We account for the observed results by a Markov adaptive learning model postulating regret minimization and inertia. We find that subjects' learning behavior was similar across conditions, except that they exhibited more inertia in the condition with en route information.     

Tacit Coordination in Choice Between Certain Outcomes in Endogenously Determined Lotteries

Tacit coordination is studied in a class of games in which each of n = 20 players is required to choose between two courses of actions. The first action offers each player a fixed outcome whereas the second presents her the opportunity of participating in a lottery with probabilities that are determined endogenously. Across multiple iterations of the game and trial-to-trial changes in the composition of the lottery, we observe a remarkably good coordination on the aggregate but not individual level. We further observe systematic deviations from the Nash equilibrium solution that are accounted for quite well by a simple adaptive learning model.     

The equalizing role of human resource intensive growth strategies: A theoretical model

Empirical evidence concerning the relationship between education-intensive development strategies and income distribution is used to formulate a growth model in which the variance of the dispersion rate of income is linked to the human and physical capital intensity of production. It is shown that, under plausible assumptions, the growth trajectory does not have a unique steady state. Of the possible steady states, for any two steady states characterized by equal per capita output and by different combinations of physical capital-labor ratio and average human capital, the income distribution associated with the steady state with the higher level of average human capital is Lorenz superior.     

Physical Punishment in Christian Arab Families in Israel: Attitudes and Behaviour

The present study examines the attitudes towards physical punishment (PP) and its actual use as reported by Christian Arab parents and their children in Israel. Participants were parents and one child (of at least two) in 50 Christian Arab families. Three questionnaires based on semi‐structured interviews were developed for the study. Results show no difference in family members’ attitudes towards the use of PP. Whereas, the mean scores indicate ambivalent acceptance of this practice, the great majority of participants reported its frequent use. Mothers’ and fathers’ attitudes were found to be highly correlated and significant predictors of such behaviour. All three groups reported that mothers use PP much more than fathers do, although it was the fathers whom the children feared most. The results also show that the parents’ most frequent reaction to seven categories of children’s misbehaviour was verbal violence and the second most frequent reaction was PP. These and other results are discussed in the context of Arab culture in Israel, the social situation model and relevant research.     

National Culture of Indulgence as Predictor of Prosocial Behavior: Governmental Effectiveness as Boundary Condition

Previous studies of national culture and prosocial behaviors have been limited to Hofstede’s five traditional culture dimensions. We introduce the fairly new and less studied cultural dimension of indulgence versus restraint (IVR) as a predictor of prosocial behaviors. We tested the effect of IVR on prosocial behavior over Hofstede’s previously studied dimensions. We also tested the moderating effect of government effectiveness on the relationship between indulgence and prosocial behavior. We crossed data for cultural dimensions from Hofstede with data from the world-giving index for prosocial behavior and data for government effectiveness from the World Bank. In total, eighty-seven countries entered our model. Indulgence predicted volunteering above the other researched cultural dimensions. It did not predict helping a stranger or donating. Among the cultural dimensions, only uncertainty avoidance was also significant in the prediction of volunteering. Uncertainty avoidance was the only cultural dimension that predicted donating. Individualism was not significant in the prediction of prosocial behaviors. Long-term orientation was the only cultural dimension that predicted helping a stranger (but not volunteering and donating) over other researched cultural dimensions. We found that government effectiveness is a boundary condition to the link between indulgent cultures and two prosocial behaviors (donating and helping a stranger but not for volunteering). Our results indicate that only in countries with high government effectiveness does indulgence predict prosocial behaviors, and not in cultures with low government effectiveness.

     

Hold or roll: reaching the goal in jeopardy race games

We consider a class of dynamic tournaments in which two contestants are faced with a choice between two courses of action. The first is a riskless option (“hold”) of maintaining the resources the contestant already has accumulated in her turn and ceding the initiative to her rival. The second is the bolder option (“roll”) of taking the initiative of accumulating additional resources, and thereby moving ahead of her rival, while at the same time sustaining a risk of temporary setback. We study this tournament in the context of a jeopardy race game (JRG), extend the JRG to $N > 2$ contestants, and construct its equilibrium solution. Compared to the equilibrium solution, the results of three experiments reveal a dysfunctional bias in favor of the riskless option. This bias is substantially mitigated when the contestants are required to commit in advance how long to pursue the risky course of action.     

Microcosms and macrocosms: Seat allocation in proportional representation systems

Three alternative methods are proposed to determine a normative standard concerning the fair proportion of seats a party ought to receive in a representative assembly as a function of the voters' preference orderings. The methods differ from one another in their treatment of indifference relations and the assumptions they make about the type of scale underlying voters' preferences. Common to all three methods is the basic idea that the ratio between the number of voters preferring party i over j to the number of voters preferring party j over i can be tested for consistency, in a precisely defined sense, and if sufficiently consistent, can be appropriately scaled to determine the proportion of seats each party ought to receive. The proposed solutions are shown to satisfy several desiderata when the matrix of preference ratios is consistent. When there are cyclical majorities of equal size, the matrix of preference ratios is inconsistent. The main application of the proposed scheme is as a normative benchmark against which actual or proposed voting procedures can be evaluated in proportional representation systems. The theoretical implications of these solutions are briefly discussed.This research was supported by the United States - Israel Binational Science Foundation (BSF), Jerusalem, Israel. We wish to thank Steven Brams, David V. Budescu, and Joseph Greenberg for many helpful comments.     

Business Social Responsibility: Perspectives of Businesses and Social Workers

ABSTRACT

This article compares the attitudes of social workers and business employees regarding the community involvement of businesses and the role of social workers in this involvement. The study, based on a structured questionnaire, was conducted in Israel and consisted of 316 participants from two cohorts: social workers and business employees. The principal findings show that social workers are more inclined than business employees to recommend that social workers increase their involvement in business social responsibility (BSR); business employees are more likely than social workers to advocate that the latter assume managerial functions; both groups support a low level of influence for social workers on decision-making processes and a role of exchange of knowledge rather than full partnership. The discussion addresses the implications of the findings for increasing social workers' involvement in BSR and cooperation with the business sector.     

Distributed Decisions in Networks: Laboratory Study of Routing Splittable Flow

We study network games in which users choose routes in computerized networks susceptible to congestion. In the “unsplittable” condition, route choices are completely unregulated, players are symmetric, each player controls a single unit of flow and chooses a single origin–destination (O–D) path. In the “splittable” condition, which is the main focus of this study, route choices are partly regulated, players are asymmetric, each player controls multiple units of flow and chooses multiple O–D paths to distribute her fleet. In each condition, users choose routes in two types of network: a basic network with three parallel routes and an augmented network with five routes sharing joint links. We construct and subsequently test equilibrium solutions for each combination of condition and network type, and then propose a Markov revision protocol to account for the dynamics of play. In both conditions, route choice behavior approaches equilibrium and the Braess Paradox is clearly manifested.