Despite their current prevalence and historical significance, little is known about the economics of open air markets. This paper uses open air markets as a natural laboratory to provide initial insights into the underlying operation of such markets. Using data on thousands of individual...

Laboratory experiments have been used extensively in economics in the past several decades to lend both positive and normative insights into a myriad of important economic issues. This study discusses a related approach that has increasingly grown in prominence of late--field experiments. I...