Beliefs about collective outcomes, such as economic growth or firm profitability, play an important role in many contexts. We study biases in the formation of such beliefs. Specifically, we explore whether over-optimism and self-serving biases in information processing—documented for beliefs...

This paper investigates the direct and indirect effects of others' beliefs on respondents' own beliefs and consumer sentiment. Conducting consumer surveys with randomized control trials (RCTs) in Thailand and Vietnam during the COVID-19 pandemic, we implement two information treatments. Both...