Creator: İmrohoroglu, Selahattin. Series: Macroeconomics with heterogenous agents, incomplete markets, liquidity constraints, and transaction costs Abstract:
This paper investigates the optimal tax structure in an overlapping generations model in which individuals face idiosyncratic income risk, borrowing constraints and lifetime uncertainty. The calibrated model economy produces some quantitative results that differ significantly from the findings of the previous research. The main finding in this imperfect insurance setup is that moving away from capital income taxation toward higher labor income taxation yields a (steady-state) welfare benefit of 1% of aggregate consumption compared with the 6% figure Lucas (1990) finds in an infinite-horizon, complete markets model. This is because replacing the tax on capital income with a higher tax on labor income redistributes resources away from the young working years during which borrowing constraints are more likely to bind. Furthermore, when the individuals have access to a private annuity market to insure against uncertain lifetimes, it becomes optimal to tax capital. When a consumption tax is made available, it is optimal to switch to consumption taxation. The welfare benefit from implementing this optimal plan is on the order of 1.5-3.2% of GNP.
Subject (JEL): H21 - Taxation, subsidies and revenue - Efficiency ; Optimal taxation and D52 - General equilibrium and disequilibrium - Incomplete markets
Creator: Cole, Harold Linh, 1957-, Dow, James, 1961 -, and English, William B. (William Berkeley), 1960- Series: International perspectives on debt, growth, and business cycles Abstract:
We consider a model of international sovereign debt where repayment is enforced because defaulting nations lose their reputation and consequently, are excluded from international capital markets. Underlying the analysis of reputation is the hypothesis that borrowing countries have different, unobservable, attitudes towards the future. Some regimes are relatively myopic, while others are willing to make sacrifices to preserve their access to debt markets. Nations' preferences, while unobservable, are not fixed but evolve over time according to a Markov process. We make two main points. First we argue that in models of sovereign debt the length of the punishment interval that follows a default should be based on economic factors rather than being chosen arbitrarily. In our model, the length of the most natural punishment interval depends primarily on the preference parameters. Second, we point out that there is a more direct way for governments to regain their reputation. By offering to partially repay loans in default, a government can signal its reliability. This type of signaling can cause punishment interval equilibria to break down. We examine the historical record on lending resumption to argue that in almost all cases, some kind of partial repayment was made.
Subject (JEL): H63 - National budget, deficit, and debt - Debt ; Debt management and F34 - International finance - International lending and debt problems
Creator: Segerstrom, Paul Stephen, 1957- Series: Economic growth and development Abstract:
This paper develops a dynamic general equilibrium model of economic growth. The model has a steady state equilibrium in which some firms devote resources to discovering qualitatively improved products and other firms devote resources to copying these products. Rates of both innovation and imitation are endogenously determined based on the outcomes of R&D races between firms. Innovation subsidies are shown to unambiguously promote economic growth. Welfare is only enhanced however if the steady state intensity of innovative effort exceeds a critical level.
Subject (JEL): O41 - One, Two, and Multisector Growth Models and O31 - Technological change ; Research and development - Innovation and invention : Processes and incentives
Creator: Parente, Stephen L. and Prescott, Edward C. Series: Economic growth and development Abstract:
Technology change is modeled as the result of decisions of individuals and groups of individuals to adopt more advanced technologies. The structure is calibrated to the U.S. and postwar Japan growth experiences. Using this calibrated structure we explore how large the disparity in the effective tax rates on the returns to adopting technologies must be to account for the huge observed disparity in per capita income across countries. We find that this disparity is not implausibly large.
Subject (JEL): O33 - Technological change ; Research and development - Technological change : Choices and consequences ; Diffusion processes and O41 - One, Two, and Multisector Growth Models
Creator: Grossman, Gene M. and Helpman, Elhanan. Series: International perspectives on debt, growth, and business cycles Abstract:
We construct a model of the product cycle featuring endogenous innovation and endogenous technology transfer. Competitive entrepreneurs in the North expend resources to bring out new products whenever expected present discounted value of future oligopoly profits exceeds current product development costs. Each Northern oligopolist continuously faces the risk that its product will be copied by a Southern imitator, at which time its profit stream will come to an end. In the South, competitive entrepreneurs may devote resources to learning the production processes that have been developed in the North. There too, costs (of reverse engineering) must be covered by a stream of operating profits. We study the determinants of the long-run rate of growth of the world economy, and the long-run rate of technological diffusion. We also provide an analysis of the effects of exogenous events and of public policy on relative wage rates in the two regions.
Keyword: North-South trade, Product cycles, Imitation, Long-run growth, Technological change, and Innovation Subject (JEL): O33 - Technological change ; Research and development - Technological change : Choices and consequences ; Diffusion processes, F11 - Trade - Neoclassical models of trade, and F41 - Macroeconomic aspects of international trade and finance - Open economy macroeconomics
Creator: Chari, V. V., Kehoe, Patrick J., and McGrattan, Ellen R. Series: Joint committee on business and financial analysis Abstract:
This paper proposes a simple method for guiding researchers in developing quantitative models of economic fluctuations. We show that a large class of models, including models with various frictions, are equivalent to a prototype growth model with time varying wedges that, at least on face value, look like time-varying productivity, labor taxes, and capital income taxes. We label the time varying wedges as efficiency wedges, labor wedges, and investment wedges. We use data to measure these wedges and then feed them back into the prototype growth model. We then assess the fraction of fluctuations accounted for by these wedges during the great depressions of the 1930s in the United States, Germany, and Canada. We find that the efficiency and labor wedges in combination account for essentially all of the declines and subsequent recoveries. Investment wedge plays at best a minor role.
Keyword: Business cycle, Cycle, Economic fluctuations, Fluctuation, and Growth Subject (JEL): O41 - One, Two, and Multisector Growth Models, O47 - Economic growth and aggregate productivity - Measurement of economic growth ; Aggregate productivity ; Cross-country output convergence, and E32 - Prices, business fluctuations, and cycles - Business fluctuations ; Cycles
Creator: Azariadis, Costas. and Smith, Bruce D., d. 2002. Series: Finance, fluctuations, and development Abstract:
We study a variant of the one-sector neoclassical growth model of Diamond in which capital investment must be credit financed, and an adverse selection problem appears in loan markets. The result is that the unfettered operation of credit markets leads to a one-dimensional indeterminacy of equilibrium. Many equilibria display economic fluctuations which do not vanish asymptotically; such equilibria are characterized by transitions between a Walrasian regime in which the adverse selection problem does not matter, and a regime of credit rationing in which it does. Moreover, for some configurations of parameters, all equilibria display such transitions for two reasons. One, the banking system imposes ceilings on credit when the economy expands and floors when it contracts because the quality of public information about the applicant pool of potential borrowers is negatively correlated with the demand for credit. Two, depositors believe that returns on bank deposits will be low (or high): these beliefs lead them to transfer savings out of (into) the banking system and into less (more) productive uses. The associated disintermediation (or its opposite) causes banks to contract (expand) credit. The result is a set of equilibrium interest rates on loans that validate depositors' original beliefs. We investigate the existence of perfect foresight equilibria displaying periodic (possibly asymmetric) cycles that consist of m periods of expansion followed by n periods of contraction, and propose an algorithm that detects all such cycles.
Keyword: Equilibrium, Business cycles, Credit markets, and Interest rates Subject (JEL): O41 - One, Two, and Multisector Growth Models, E44 - Money and interest rates - Financial markets and the macroeconomy, E51 - Monetary policy, central banking, and the supply of money and credit - Money supply ; Credit ; Money multipliers, and E32 - Prices, business fluctuations, and cycles - Business fluctuations ; Cycles
Creator: Gomme, Paul, 1961- Series: Economic growth and development Abstract:
Results in Lucas (1987) suggest that if public policy can affect the growth rate of the economy, the welfare implications of alternative policies will be large. In this paper, a stochastic, dynamic general equilibrium model with endogenous growth and money is examined. In this setting, inflation lowers growth through its effect on the return to work. However, the welfare costs of higher inflation are extremely modest.
Subject (JEL): E31 - Prices, business fluctuations, and cycles - Price level ; Inflation ; Deflation and O42 - Economic growth and aggregate productivity - Monetary growth models
Creator: Wallace, Neil. Series: Working paper (Federal Reserve Bank of Minneapolis. Research Dept.) Number: 370 Abstract:
The Diamond-Dybvig model of banking (Journal of Political Economy, 1983) is amended by introducing communication barriers—these being implicit in their model and in most explanations of why people hold so-called liquid assets. These barriers imply the sequential-service constraint that Diamond and Dybvig imposed on private intermediation and have other implications: infeasibility of the policy that Diamond and Dybvig identify with deposit insurance and desirability of dependence of the realized return on deposits on the random order of withdrawals.
Keyword: Dybvig, Deposit insurance, Communication barrier, Liquid assets, Banks, Sequential service constraint, and Diamond Subject (JEL): G21 - Financial institutions and services - Banks ; Other depository institutions ; Micro finance institutions ; Mortgages