Kirjahaku

Asset prices are driven by public news and information that is often dispersed among many market participants. These agents try to infer each other's information by analyzing price processes. In the past two decades, theoretical research in financial economics has significantly advanced our understanding of the informational aspects of price processes. This book provides a detailed and up-to-date survey of this important body of literature. The book begins by demonstrating how to model asymmetric information and higher-order knowledge. It then contrasts competitive and strategic equilibrium concepts under asymmetric information. It also illustrates the dependence of information efficiency and allocative efficiency on the security structure and the linkage between both efficiency concepts. No-Trade theorems and market breakdowns due to asymmetric information are then explained, and the existence of bubbles under symmetric and asymmetric information is investigated. The remainder of the survey is devoted to contrasting different market microstructure models that demonstrate how asymmetric information affects asset prices and traders' information , which provide a theoretical explanation for technical analysis and illustrate why some investors "chase the trend." The reader is then introduced to herding models and informational cascades, which can arise in a setting where agents' decision-making is sequential. The insights derived from herding models are used to provide rational explanations for stock market crashes. Models in which all traders are induced to search for the same piece of information are then presented to provide a deeper insight into Keynes' comparison of the stock market with a beauty contest. The book concludes with a brief summary of bank runs and their connection to financial crises.

An acclaimed economist's fully revised and expanded guide to how resilient thinking helps us thrive in a world filled with unknown risks Risks are ubiquitous in our world. In recent years, a changing global order, the war in Ukraine, food insecurity in emerging and developing economies, the COVID pandemic, and increasingly severe weather events have exposed our vulnerabilities and heightened our awareness that large, unexpected events can upend our lives at any moment. Describing how individuals, institutions, and nations can successfully navigate a dynamic, globalized economy filled with unknown risk, Markus K. Brunnermeier argues for adopting resilience as a central tenet of decision-making. Different from risk avoidance--which involves a cost-benefit analysis by weighing the outcome of various scenarios and choosing the less risky one--resilience focuses on the ability to bounce back from shocks and setbacks. Written for business leaders, economists, policymakers, and politically interested individuals, this wholly revised edition of the award-winning The Resilient Society applies macroeconomic insights to public health, innovation, public debt overhang, inflation, inequality, climate change, and other challenges to the global order. Brunnermeier shows how the concept of resilience can be a compass for developing a social contract that benefits us all.