The article discusses financial markets theory, focusing on equilibrium, efficiency, and information. It covers topics like choices under certainty and risk, portfolio analysis, asset pricing models, and the role of information in financial markets. The researchers explore how uncertainty, rationality, and heterogeneity impact financial decision-making. They also delve into corporate finance, market microstructure, and regulation in financial markets. The key findings include the importance of information in market efficiency, the impact of risk on asset pricing, and the role of intermediaries in financial markets.