Financial crises can happen for a variety of reasons: (a) nobody really understands what is going on (the collective cognition paradigm); (b) some understand better than others and take advantage of their knowledge (the asymmetric information paradigm); (c) everybody understands, but crises are...

This paper examines the conceptual foundations of macroprudential policy by reviewing the literature on financial frictions from a policy perspective that systematically links state interventions to market failures. The method consists in gradually incorporating into the Arrow-Debreu world a...

This paper explores the conceptual foundations of macroprudential policy. It does so within a framework that gradually incorporates and interacts two types of frictions (principal-agent and collective action) with two forms of rationality (full and bounded), all in the context of aggregate...

This paper analyzes the bright and dark sides of the financial development process through the lenses of the four fundamental frictions to which agents are exposed-information asymmetry, enforcement, collective action, and collective cognition. Financial development is shaped by the efforts of...

The world economy is not what it used to be twenty years ago. For most of the 20th century, the world economy was characterized by developed (North) countries acting as 'center' to a 'periphery' of developing (South) countries. However, the recent rise of developing economies suggests the need...

Latin America's historically low saving rates and sub-par growth performance raise the question of whether the region should save more to grow faster. Economists generally resist acknowledging a policy-exploitable causal connection going from saving to growth because domestic saving is perceived...

A widely shared view holds that there is no policy-exploitable causal connection from saving to growth because domestic saving is fully endogenous, optimally determined, or substitutable by foreign saving. Yet, abandoning these assumptions, which are questionable in the real world of frictions,...

Financial crises can happen for a variety of reasons: (a) nobody really understands what is going on (the collective cognition paradigm); (b) some understand better than others and take advantage of their knowledge (the asymmetric information paradigm); (c) everybody understands, but crises are...