Models of bounded rationality often lead to sharper predictions about real world outcomes than their full rationality counterparts. Full rationality in repeated interactions allows a plethora of equilibrium outcomes. In this paper, I examine the effect of bounded rationality in infinitely repeated games. In particular, does the introduction of boundedly rational agents lead to a smaller set of ...

Win Stay, Lose Shift as well as imitation strategies for iterated games rely on an aspiration level. With both learning rules a move is repeated unless the pay-o fell short of the aspiration level. I investigate social adaptation mechanisms for the aspiration level and their impact on the eÆciency of learning in a large population of agents that repeatedly play one round of a symmetric 2 2 game...

INTRODUCTION Historically, emergency department (ED) patients with pulmonary embolism (PE) have been admitted for several days of inpatient care. Growing evidence suggests that selected ED patients with PE can be safely discharged home after a short length of stay. However, the optimal timing of follow up is unknown. We hypothesized that higher-risk patients with short length of stay (<24 hours...

OBJECTIVES To evaluate the effectiveness of a short-stay in-patient rehabilitation programme. DESIGN Prospective case-control cohort study. SETTING Regional medical centre, Hong Kong. PATIENTS One hundred and thirty symptomatic elderly patients with chronic obstructive pulmonary disease who had been treated for an acute respiratory illness in 1998. They were divided into two groups: the c...