This study examines the major macroeconomic determinants and the structural relationships of current account variability, capital flows, saving and investment in open economies that are linked to the international financial markets. It explores the appropriateness of domestic policy responses (such as money stock growth, government spending, openness criteria, GDP growth) and the size of population or the impact of external shocks (such as exchange rate variability and the terms of trade uncertainty) for determining the domestic saving-investment comovement and capital flows worldwide. This analysis finds that even high positive correlations between national saving and investment rates could naturally arise within a perfect capital mobility framework where domestic policy variability and external shocks are likely to play a significant role for capital inflow.

The gradual acceleration of growth in developing countries is a defining feature of the past two decades. This acceleration came with major shifts in patterns of investment, saving, and capital flows. This second volume in the Global Development Horizons series analyzes these shifts and explores how they may evolve through 2030. Average domestic saving in developing countries stood at 34 percent of their GDP in 2010, up from 24 percent in 1990, while their investment was around 33 percent of their GDP in 2012, up from 26 percent. These trends in saving and investment, along with higher growth rates in developing countries, have resulted in developing countries’ share of global savings now standing at 46 percent, nearly double the level of the 1990s. The presence of developing countries on the global stage will continue to expand over the next two decades. Analysis in this report projects that by 2030, China will account for 30 percent of global investment activity, far and away the largest share of any single country, while India and Brazil (at 7 percent and 3 percent) will account for shares comparable to those of the United States and Japan (11 percent and 5 percent). The complex interaction among aging, growth, and financial deepening can be expected to result in a world where developing countries will contribute 62 of every 100 dollars of world saving in 2030, up from 45 dollars in 2010, and where they account for between $6.2 trillion and $13 trillion of global gross capital flows, rising from $1.3 trillion in 2010. Trends in investment, saving, and capital flows through 2030 will affect economic conditions from the household level to the global macroeconomic level, with implications not only for national policy makers but also for international institutions and policy coordination. Policymakers preparing for this change will benefit from a better understanding of the unfolding dynamics of global capital and wealth in the future. This book is accompanied by a website, http://www.worldbank.org/CapitalForTheFuture, that includes a host of related electronic resources: data sets underlying the two main scenarios presented in the report, background papers, technical appendixes, interactive widgets with variations to some of the assumptions used in the projections, and related audio and video resources.

Recent changes in technology, along with the opening up of many regions previously closed to investment, have led to explosive growth in the international movement of capital. Flows from foreign direct investment and debt and equity financing can bring countries substantial gains by augmenting local savings and by improving technology and incentives. Investing companies acquire market access, lower cost inputs, and opportunities for profitable introductions of production methods in the countries where they invest. But, as was underscored recently by the economic and financial crises in several Asian countries, capital flows can also bring risks. Although there is no simple explanation of the currency crisis in Asia, it is clear that fixed exchange rates and chronic deficits increased the likelihood of a breakdown. Similarly, during the 1970s, the United States and other industrial countries loaned OPEC surpluses to borrowers in Latin America. But when the U.S. Federal Reserve raised interest rates to control soaring inflation, the result was a widespread debt moratorium in Latin America as many countries throughout the region struggled to pay the high interest on their foreign loans. International Capital Flows contains recent work by eminent scholars and practitioners on the experience of capital flows to Latin America, Asia, and eastern Europe. These papers discuss the role of banks, equity markets, and foreign direct investment in international capital flows, and the risks that investors and others face with these transactions. By focusing on capital flows' productivity and determinants, and the policy issues they raise, this collection is a valuable resource for economists, policymakers, and financial market participants.

This books explores the international aspects of pension reform, private savings and volatile capital markets and clarifies how they relate to each other.

A long literature since Feldstein and Horioka's seminal contribution documents the strong correlation of domestic saving and investment rates since the 1960s. According to conventional wisdom, the result provides evidence of international capital market imperfections. The macroeconomic theory of small open economies prescribes a relationship between the composition of aggregate demand and its relative price structure, a linkage hitherto ignored in the saving-investment literature. Theory and evidence also suggest a role for growth and demographic effects, well known in previous studies. If one controls for these effects, the standard correlation of saving and investment disappears. International capital markets may be better integrated than once thought, and the former correlations may have been spurious. The pattern of domestic investment rates is better explained by domestic price distortions and other variables than by domestic saving constraints.