A comparative dynamic analysis of a growth model under alternate policy regimes

Comparative dynamic analysis is conducted on a growth model with variable price levels and wage rates. A perturbation technique is used to compare the economy's time paths near a balanced growth path in response to alternate policy regimes. Various dynamic policy multipliers are calculated in response to some of the alternate policy regimes such as the balanced-budget fiscal regime, the constant price regime, the full-employment regime, etc., to examine their dynamic implications on the economy's behavior. Temporary deviations in the fiscal variables are found to leave no permanent effects under all but one of the regimes examined.     

An empirical analysis on the law of purchasing power parity and international economic deepening

This article empirically investigates the effect of international trade on the deviation of Purchasing Power Parity (PPP) law and on the international economic deepening in four developed countries (Japan, USA, UK and France), and three Asian developing ones (South Korea, Singapore and Malaysia), using International Financial Statistics (IFS) data issued by International Monetary Fund (IMF). Our results show that in some developed countries the imbalance effect of balance of payments is significant for both international deepening and deviation from PPP, and in some developing countries the volume effect of balance of payments is significant for international deepening.     

Monetary reaction functions in a small open economy

Monetary reaction functions are constructed in an intertemporal optimization framework. The time-varying coefficients to be put on the variations of the exchange rate and the asset stock are then derived by solving a matrix Riccati equation. As the planning horizon extends to infinity, a related algebraic Riccati equation coincides with those derived from minimization of stationary state variances only under certain conditions. Under the assumed full information by the government, reaction functions using realized values of exogenous shocks result in dynamics that do not enjoy the same stability property as the ones obtained by explicit intertemporal optimization.     

An Evolving Diversity of Organizational Mode and Its Implications for Transitional Economies

The paper constructs a theoretical framework for analyzing the comparative informational efficiency of five organizational modes, each modeled after an evolving diversity of a firm′s internal organization in market economies. It then discusses analytical implications for the organizational reform which may emerge within the ex-state-owned enterprise under evolutionary constraints of the transition, particularly under the tendency toward insider control. It is maintained that possible organizational reform hinges upon the coevolution of complementary ownership structure and financial monitoring mechanism. J. Japan. Int. Econ., December 1995, 9(4), pp. 330–353. Department of Economics, Stanford University, Stanford, California 94305.     

Non-self-averaging and the statistical mechanics of endogenous macroeconomic fluctuations

Strong fluctuation phenomena are an endogenous feature of economic systems if they are non-self-averaging. We show that an important consequence of non-self-averaging is that current forms of economic policy can be rendered useless. We also find non-self-averaging both to exist in microeconomic models of cluster development within economies and to be consistent with observed economic power laws. These results suggest the need for straightforward identification of non-self-averaging in economic systems and to this end we present a sufficient condition for non-self-averaging in terms familiar to financial risk management.     

ECONOMIC FLUCTUATIONS WITH INTERACTIVE AGENTS: DYNAMIC AND STOCHASTIC EXTERNALITIES*

This paper proposes a general modelling framework for macroeconomic dynamic behaviour of a large collection of interacting agents, and illustrates the procedure for a simple case of agents having the same binary decision set. Evolution over time of the fractions of agents using the same technology is modelled as a birth-and-death stochastic process with endogenized transition rates, and its master equation (Chapman-Kolmogorov backward equation) is expanded into power series in the total number of agents in the model. The first term of the expansion is the aggregate (macroeconomic) dynamic model. Stochastic dynamics of the proportions of agents using the same technology can exhibit multiple equilibria; this paper discusses an example with one locally unstable and two locally stable equilibria, with some simulation computer runs. There are two results of broad implication. One is the demonstration that stochastic dynamics allocates positive probabilities to all locally stable equilibria. Stochastic dynamics thus stands in sharp contrast to deterministic dynamics. In the latter, history (initial conditions) and expectations (often exogenously introduced discontinuous changes in trajectories) uniquely select the basin of attraction in which trajectories are eventually located. The second is the illustration of the usefulness of jump Markov processes in general, and birth-and-death processes in particular in economic modelling. Among several results specific to these processes, we show that the mean first passage time from one locally stable equilibrium to another is proportional to the exponential function of the height of the potential barrier separating the two basins of attraction of these two locally stable equilibria.     

Misadjustment to anticipated shocks: an example of exchange-rate response

A simple model for a small open economy is used to illustrate a distinction between over(under)shooting and what is labeled as misadjusting responses of the exchange rate in this paper. If the relative price elasticity of the aggregate demand, d, is greater than 1, then the exchange rate misadjusts when the time interval between the date when the exchange is anticipated for the first time to the realization of the change is longer than a certain minimum, called the minimum lead time. If d is less than 1, then the exchange rate overshoots with sufficiently long lead time when a shift up of real output is anticipated.     

House prices, consumption, and monetary policy: a financial accelerator approach

We consider a general equilibrium model with frictions in credit markets used by households. In our economy, houses provide housing services to consumers and serve as collateral to lower borrowing cost. We show that this amplifies and propagates the effect of monetary policy shocks on housing investment, house prices and consumption. We also consider the effect of a structural change in credit markets that lowers the transaction costs of additional borrowing against housing equity. We show that such a change would increase the effect of monetary policy shocks on consumption, but would decrease the effect on house prices and housing investment.     

On decentralized stabilization policies and dynamic assignment problems

The paper formulates the assignment problem in a dynamic setting where both the system and the instrument generation are dynamically modeled, taking explicit account of finite adjustment speeds. The decentralized stabilization problem for this dynamic model is then formulated, and several special cases are solved. An example of a two-country model is presented in which target variables of the two governments overlap. The root-locus analysis method is used to solve the stabilization problem for this example. The paper concludes with a brief discussion of comparative advantage in dynamic setting.