In club models of religion, sacrifices demanded by religious groups promote efficient production of club goods by screening out free riders. An alternative, complementary view is that religious clubs provide a means of sorting, matching individuals with similar characteristics. Sorting differs from screening in that it operates on traits that do not directly affect club goods production. This p...

The main contributions that are put forward in this thesis will be described shortly. 1. Instead of computing the largest 2-club in a network, all 2-clubs in a network are computed. In addition, this set of 2-clubs is classified, ordered and clustered. Here the characterization by Mokken [13] is used. 2. The running times of the known algorithms and the ones proposed this thesis are evaluated o...

Introduction: The transtheoretical model of behaviour change (TTM) is often used to understand changes in health related behaviour, like exercise. The applicability of this model to exercise behaviour of the 140 million members in fitness clubs worldwide has never been systematically reviewed. The purpose of this paper is to review current TTM studies on exercise behaviour of this specific popu...

Conventional golf-swing robots are generally used to evaluate the performance of golf clubs and balls. Most of the robots have two or three joints with completely interrelated motion. This interrelation only allows the user of the robot to specify the initial posture and swing velocity, and therefore the subtle adjustments in swing motion that advanced golfers make according to the characterist...

BACKGROUND Physical activity among adolescents and its implications for health status is of increasing concern. We examined trends in physical activity and participation in sports clubs among Icelandic adolescents. METHODS Cross-sectional survey data were used to determine levels of vigorous physical activity and participation in sports clubs (defined as engaging in moderately intensive activ...

This paper develops a model of an economy with clubs where individuals may belong to multiple clubs and where there may be ever increasing returns to club size. Clubs may be large, as large as the total agent set. The main condition required is that sufficient wealth can compensate for memberships in larger and larger clubs. Notions of price taking equilibrium and the core, both with communicat...

Sporting clubs are an ideal setting to promote community-wide participation in physical activity. Using the principles of the Ottawa Charter as a guide, this study explored the factors affecting the development of supportive environments as a mechanism to increase participation in club sport. The Victorian Health Promotion Foundation (VicHealth) funds State Sporting Associations (SSAs) to devel...