A study of asset price bubbles and the implications for preventing financial instability.

The jargon of economics and finance contains numerous colorful terms for market-asset prices at odds with any reasonable economic explanation. Examples include "bubble," "tulipmania," "chain letter," "Ponzi scheme," "panic," "crash," "herding," and "irrational exuberance." Although such a term suggests that an event is inexplicably crowd-driven, what it really means, claims Peter Garber, is that we have grasped a near-empty explanation rather than expend the effort to understand the event. In this book Garber offers market-fundamental explanations for the three most famous bubbles: the Dutch Tulipmania (1634-1637), the Mississippi Bubble (1719-1720), and the closely connected South Sea Bubble (1720). He focuses most closely on the Tulipmania because it is the event that most modern observers view as clearly crazy. Comparing the pattern of price declines for initially rare eighteenth-century bulbs to that of seventeenth-century bulbs, he concludes that the extremely high prices for rare bulbs and their rapid decline reflects normal pricing behavior. In the cases of the Mississippi and South Sea Bubbles, he describes the asset markets and financial manipulations involved in these episodes and casts them as market fundamentals.

Why do stock and housing markets sometimes experience amazing booms followed by massive busts and why is this happening more and more frequently? In order to answer these questions, William Quinn and John D. Turner take us on a riveting ride through the history of financial bubbles, visiting, among other places, Paris and London in 1720, Latin America in the 1820s, Melbourne in the 1880s, New York in the 1920s, Tokyo in the 1980s, Silicon Valley in the 1990s and Shanghai in the 2000s. As they do so, they help us understand why bubbles happen, and why some have catastrophic economic, social and political consequences whilst others have actually benefited society. They reveal that bubbles start when investors and speculators react to new technology or political initiatives, showing that our ability to predict future bubbles will ultimately come down to being able to predict these sparks.

The volatility of capital flows to emerging markets continues to pose challenges to policymakers. In this paper, we propose a new framework to answer critical policy questions: What policies and policy frameworks are most effective in dampening sharp capital flow movements in response to global shocks? What are the near- versus medium-term trade-offs of different policies? We tackle these questions using a quantile regression framework to predict the entire future probability distribution of capital flows to emerging markets, based on current domestic structural characteristics, policies, and global financial conditions. This new approach allows policymakers to quantify capital flows risks and evaluate policy tools to mitigate them, thus building the foundation of a risk management framework for capital flows.

This paper presents a stylized model of international trade and asset price bubbles. Its central insight is that bubbles tend to appear and expand in countries where productivity is low relative to the rest of the world. These bubbles absorb local savings, eliminating inefficient investments and liberating resources that are in part used to invest in high productivity countries. Through this channel, bubbles act as substitute for international capital flows, improving the international allocation of investment and reducing rate-of-return differentials across countries. This view of asset price bubbles has important implications for the way we think about economic growth and fluctuations. It also provides a simple account of some real world phenomenae that have been difficult to model before, such as the recurrence and depth of financial crises or their puzzling tendency to propagate across countries

Why the global economy has become increasingly unstable, and how financial “de-carbonization” could break the pattern of bubble-driven wealth destruction. The global economy has become increasingly, perhaps chronically, unstable. Since 2008, we have heard about the housing bubble, subprime mortgages, banks “too big to fail,” financial regulation (or the lack of it), and the European debt crisis. Wall Street has discovered that it is more profitable to make money from other people's money than by investing in the real economy, which has limited access to capital—resulting in slow growth and rising inequality. What we haven't heard much about is the role of natural resources—energy in particular—as drivers of economic growth, or the connection of “global warming” to the economic crisis. In The Bubble Economy, Robert Ayres—an economist and physicist—connects economic instability to the economics of energy. Ayres describes, among other things, the roots of our bubble economy (including the divergent influences of Senator Carter Glass—of the Glass-Steagall Law—and Ayn Rand); the role of energy in the economy, from the “oil shocks” of 1971 and 1981 through the Iraq wars; the early history of bubbles and busts; the end of Glass-Steagall; climate change; and the failures of austerity. Finally, Ayres offers a new approach to trigger economic growth. The rising price of fossil fuels (notwithstanding “fracking”) suggests that renewable energy will become increasingly profitable. Ayres argues that government should redirect private savings and global finance away from home ownership and toward “de-carbonization”—investment in renewables and efficiency. Large-scale investment in sustainability will achieve a trifecta: lowering greenhouse gas emissions, stimulating innovation-based economic growth and employment, and offering long-term investment opportunities that do not depend on risky gambling strategies with derivatives.

Managing Capital Flows provides analyses that can help policymakers develop a framework for managing capital flows that is consistent with prudent macroeconomic and financial sector stability. While capital inflows can provide emerging market economies with invaluable benefits in pursuing economic development and growth, they can also pose serious policy challenges for macroeconomic management and financial sector supervision. The expert contributors cover a wide range of issues related to managing capital flows and analyze the experience of emerging Asian economies in dealing with surges in capital inflows. They also discuss possible policy measures to manage capital flows while remaining consistent with the goals of macroeconomic and financial sector stability. Building on this analysis, the book presents options for workable national policies and regional policy cooperation, particularly in exchange rate management. Containing chapters that bring in international experiences relevant to Asia and other emerging market economies, this insightful book will appeal to policymakers in governments and financial institutions, as well as public and private finance experts. It will also be of great interest to advanced students and academic researchers in finance.