Currently, Professor Comiran is focusing his research on individual investor behavior and company incentives to better understand how disclosure affects stock returns and to uncover possible mispricing. Moreover, he is conducting an examination of local vs. non-local analyst access to information, and he is investigating market reactions to natural disasters and the impact on individual firms. Prior to academia, Professor Comiran worked as an engineer at one of the four largest Telecom companies in Brazil, where he sought to improve call quality, optimize interconnection links, network traffic, and cell phone coverage.