Theoretical and empirical studies have generally weighed the effect of peer punishment and pool punishment for sanctioning free riders separately. However, these sanctioning mechanisms often pose a puzzling tradeoff between efficiency and stability in detecting and punishing free riders. Here,...

Leaving the joint enterprise when defection is unveiled is always a viable option to avoid being exploited. Although loner strategy helps the population not to be trapped into the tragedy of the commons state, it could offer only a modest income for non-participants. In this paper we demonstrate...

This paper estimates how online consumer spending responds to changes in air pollution. We address the endogeneity of air pollution in affecting household consumption by exploiting plausibly exogenous variations in air quality caused by China's Huai River heating policy. We use a comprehensive...