Economists were interested in economic stabilization policies as early as the 1930’s but the formal applications of stability theory from the classical control theory to economic analysis appeared in the early 1950’s when a number of control engineers actively collaborated with economists on economic stability and feedback mechanisms. The theory of optimal control resulting from the contributio...

in this paper, we have studied the effect of population on iranian economic growth by using optimal growth theory. optimal growth theory is a nonlinear dynamic planning. classical approaches in mathematics are used for solving these nonlinear systems. but, in this study, we have used genetic algorithm (ga) method. as results show, it seems that population growth in previous years (1350- 1386), ...

We analyze the optimal contract to finance the series of investments of a growing firm. The analysis is based on the need to repeatedly raise funds when informed insiders can expropriate outside investors. The optimal contract can be implemented by a sequence of one-period debt contracts and equity ownership by outsiders. Debt is optimal, as it reduces the expected cost of auditing, while parti...

In Lentz and Mortensen (2005), we formulate and estimate a market equilibrium model of endogenous growth through product innovation in the spirit of Klette and Kortum (2004). In this paper, we provide a quantitative solution to the social planner’s problem in the modeled environment. We find that the optimal growth rate is over three times larger than its value in market equilibrium and that th...

in this paper, by using dynamic stochastic general equilibrium, optimal monetary rule derived for central bank of iran. monetary transmission mechanism of the model includes four equations, aggregate demand, aggregate supply, oil price and taylor rule. we have proved that dynamic structure of aggregate demand relation, regarding monetary inflation in iran, is a function of money growth rate. wi...

Alterations in fetal growth trajectory, either in terms of individual organs or the fetal body, constitute part of a suite of adaptive responses that the fetus can make to a developmental challenge such as inadequate nutrition. Nonetheless, despite substantial changes in nutrition in many countries over recent centuries, mean birthweight has changed relatively little. Low birthweight is recogni...

We present a novel argument demonstrating that when trade is characterized by uncertainty the comparative advantages doctrine is misleading and a positive level of diversification is growth enhancing. Applying a result developed in the mathematical biological literature, we show that, in Ricardian trade model in which capital available for investment depends on previous periods returns, incompl...

We introduce learning in a Brock-Mirman environment and study the effect of risk generated by the planner’s econometric activity on optimal consumption and investment. Here, learning introduces two sources of risk about future payoffs: structural uncertainty and uncertainty from the anticipation of learning. The latter renders control and learning nonseparable. We present two sets of results in...