Markus Konrad Brunnermeier

"This paper introduces a tractable, structural model of subjective beliefs. Forward-looking agents care about expected future utility flows, and hence have higher current felicity if they believe that better outcomes are more likely. On the other hand, biased expectations lead to poorer decisions and worse realized outcomes on average. Optimal expectations balance these forces by maximizing average felicity. A small bias in beliefs typically leads to first-order gains due to increased anticipatory utility and only to second-order costs due to distorted behavior. We show that in a portfolio choice problem, agents overestimate the return on their investment and exhibit a preference for skewness. In general equilibrium, agents' prior beliefs are endogenously heterogeneous. Finally, in a consumption-saving problem with stochastic income, agents are both overconfident and overoptimistic"--National Bureau of Economic Research web site.

"Why is Europe's great monetary endeavor, the Euro, in trouble? A string of economic difficulties in Greece, Ireland, Spain, Italy, and other Eurozone nations has left observers wondering whether the currency union can survive. In this book, Markus Brunnermeier, Harold James, and Jean-Pierre Landau argue that the core problem with the Euro lies in the philosophical differences between the founding countries of the Eurozone, particularly Germany and France. But the authors also show how these seemingly incompatible differences can be reconciled to ensure Europe’s survival. As the authors demonstrate, Germany, a federal state with strong regional governments, saw the Maastricht Treaty, the framework for the Euro, as a set of rules. France, on the other hand, with a more centralized system of government, saw the framework as flexible, to be overseen by governments. The authors discuss how the troubles faced by the Euro have led its member states to focus on national, as opposed to collective, responses, a reaction explained by the resurgence of the battle of economic ideas: rules vs. discretion, liability vs. solidarity, solvency vs. liquidity, austerity vs. stimulus. Weaving together economic analysis and historical reflection, The Euro and the Battle of Ideas provides a forensic investigation and a road map for Europe's future." -- Publisher's description

"This paper studies predatory trading: trading that induces and/or exploits other investors' need to reduce their positions. We show that if one trader needs to sell, others also sell and subsequently buy back the asset. This leads to price overshooting and a reduced liquidation value for the distressed trader. Hence, the market is illiquid when liquidity is most needed. Further, a trader profits from triggering another trader's crisis, and the crisis can spill over across traders and across markets"--National Bureau of Economic Research web site.

"Today's financial regulatory systems assume that regulations which make individual banks safe also make the financial system safe. The eleventh Geneva Report on the World Economy shows that that thinking is flawed. Actions that banks take to make themselves safer can - in times of crisis - undermine the system's stability. The Report argues for a different approach" -- xvi