Dynamic Fiscal Policy

The role of fiscal policy in short-run macroeconomic stabilization is, by now, well known in the academic literature and in policy circles. However, this focus on the short-run, especially in a democracy, means that much less attention has been paid to the other consequences of the use of fiscal policy. By studying the intergenerational-welfare aspects of fiscal policy, this book deals with some fundamental issues of fiscal policy. Why does public debt tend to rise over time in democracies? Why is there a tendency for government spending on consumption and on social security to grow? Why do governments fail to invest in public capital adequately? Should a dollar transferred from the young be treated as a dollar transferred to the old? By studying the international aspects of fiscal policy, the book establishes international differences in fiscal policy as determinants of persistent trade imbalances and international indebtedness. It also considers some basic questions on international transfers and austerity in open economies. What criteria should be used to define a successful foreign-aid programme? Why is foreign aid likely to fail in a world of global wealth disparity? Can reliance be placed on the international coordination of austerity to improve welfare in the long run? Is austerity accompanied by international transfers superior to austerity unaccompanied by international transfers? This book based on the OLG model fills a gap on fiscal-policy issues in the recent spate of books on overlapping generations.

In pursuing a steady-state reserve target, policymakers in small open economies can resort to devaluation or to temporary increases in public saving. This paper contrasts the dynamic implications of these alternative policies in a model with optimizing agents who possess perfect foresight. In general, the private sector cannot be insulated from the effects of the government’s reserve-accumulation policies. The dynamic effects of devaluation depend on the fiscal policy rule in effect. In contrast to devaluation, the “equivalent” fiscal policies imply discontinuities in private consumption and temporary tax increases may cause key macroeconomic variables to overshoot their steady-state values.

An important recent advance in macroeconomics is the development of dynamic stochastic general equilibrium (DSGE) macromodels. The use of DSGE models to study monetary policy, however, has led to paradoxical and puzzling results on a number of central monetary issues including price determinacy and liquidity effects. In Money, Interest, and Policy, Jean-Pascal Benassy argues that moving from the standard DSGE models - which he calls "Ricardian" because they have the famous "Ricardian equivalence" property-to another, "non-Ricardian" model would resolve many of these issues. A Ricardian model represents a household as a homogeneous family of infinitely lived individuals, and Benassy demonstrates that a single modification-the assumption that new agents are born over time (which makes the model non-Ricardian)-can bridge the current gap between monetary intuitions and facts, on one hand, and rigorous modeling, on the other. After comparing Ricardian and non-Ricardian models, Benassy introduces a model that synthesizes the two approaches, incorporating both infinite lives and the birth of new agents. Using this model, he considers a number of issues in monetary policy, including liquidity effects, interest rate rules and price determinacy, global determinacy, the Taylor principle, and the fiscal theory of the price level. Finally, using a simple overlapping generations model, he analyzes optimal monetary and fiscal policies, with a special emphasis on optimal interest rate rules

Optimal tax design attempts to resolve a well-known trade-off: namely, that high taxes are bad insofar as they discourage people from working, but good to the degree that, by redistributing wealth, they help insure people against productivity shocks. Until recently, however, economic research on this question either ignored people's uncertainty about their future productivities or imposed strong and unrealistic functional form restrictions on taxes. In response to these problems, the new dynamic public finance was developed to study the design of optimal taxes given only minimal restrictions on the set of possible tax instruments, and on the nature of shocks affecting people in the economy. In this book, Narayana Kocherlakota surveys and discusses this exciting new approach to public finance. An important book for advanced PhD courses in public finance and macroeconomics, The New Dynamic Public Finance provides a formal connection between the problem of dynamic optimal taxation and dynamic principal-agent contracting theory. This connection means that the properties of solutions to principal-agent problems can be used to determine the properties of optimal tax systems. The book shows that such optimal tax systems necessarily involve asset income taxes, which may depend in sophisticated ways on current and past labor incomes. It also addresses the implications of this new approach for qualitative properties of optimal monetary policy, optimal government debt policy, and optimal bequest taxes. In addition, the book describes computational methods for approximate calculation of optimal taxes, and discusses possible paths for future research.

Keeping the economy strong will require addressing two distinct but related problems. Steadily rising federal debt makes it harder to grow our economy, boost our living standards, respond to wars or recessions, address social needs, and maintain our role as a global leader. At the same time, we have let critical investments lag and left many people behind even as overall prosperity has grown. In Fiscal Therapy, William Gale, a leading authority on how federal tax and budget policy affects the economy, provides a trenchant discussion of the challenges posed by the imbalances between spending and revenue. America is facing a gradual decline as debt accumulates and delay raises the costs of action. But there is hope: fiscal responsibility aligns with both conservative and liberal goals and citizens of all stripes can support the notion of making life better for our children and grandchildren. Gale provides a plan to make the economy and nation stronger, one that controls entitlement spending but preserves and enhances their anti-poverty and social insurance roles, increases public investments on human and physical capital, and raises and reforms taxes to pay for government services in a fair and efficient way. What is needed, he argues, is to balance today's needs against tomorrow's obligations. We face significant fiscal challenges but, if we are wise enough to seize our opportunities, we can strengthen our economy, increase opportunity, reduce inequality, and build better lives for our children and grandchildren. We do not have to kill popular programs or starve government. Indeed, one main goal of fiscal reform is to maintain the vital functions that government provides. We need to act responsibly, pay for the government we want, and shape that government in ways that serve us best.