Long-Term Impact of Lifelong Fitness: Examining Longitudinal Exercise Behavior in College Students

Over time, the United States population has gradually shifted to an increasingly inactive lifestyle, and there has been a decline in health behavior. Only 50% of the population meet the recommended guidelines for weekly physical activity. With this glaring increase of inactive lifestyles, programs designed to increase health behavior change have become crucial. One solution to this problem has been a required Lifelong Fitness class at George Fox University where new college students learn knowledge and skills to implement for healthier lifestyles during this transformative time. A multiple regression model predicting long-term exercise by pre-minutes of exercise, post-minutes of exercise, and current exercise self-efficacy was fit to data. The model accounted for 18% of variance shared in all the predictors. When all variables were entered in the model, pre-minutes of exercise and current exercise self-efficacy were significant. There were no significant changes in mean levels of exercise longitudinally, suggesting the course helped students maintain levels of activity, but not increase them

On the Evolution of Trading Institutions: The Platform Design Paradox

This paper analyzes a learning model where sophisticated market designers create new trading platforms and boundedly rational traders select among them. We ask wether "Walrasian'''' platforms, leading to efficient (market - clearing) trading outcomes, will dominate the market in the long run. If several market designers are competing, we find that traders will learn to select non-market clearing platforms with prices systematically above the market-clearing level, provided at least one such platform is introduced by a market designer. This in turn leads all market designers to introduce such inefficient (non-market clearing) platforms. Hence platform competition induces non-competitive market outcomes.economic systems ;