Decentralization of Pareto optima in economies with public projects,nonessential private goods and convex costs

Summary In the theory of economies with public goods one usually considers the case in which private goods are essential, i.e., each agent receives a fixed minimum level of utility if he consumes no private goods, irrespective of the public goods consumed. This paper develops the second welfare theorem for economies with public projects and possibly inessential private goods. As a corollary we also derive conditions under which valuation equilibria exist.hank Dolf Talman and an anonymous referee for many useful remarks and annotations of a previous draft of this paper.     

National Innovation Systems, ‘Real Economies’ and Instituted Processes

The design of institutions, policies and units of analysis are all predicated upon the ways in which we see the world and explain change. Today, as the pace of change quickens due to technological advancement and growing technoeconomic interdependencies in a series of processes generally referred to as globalization, analytic frameworks which emphasize national systems have emerged to provide a unit of analysis through which to explain these changes and growing interactions. These frameworks have the allure of trying to incorporate the ways in which economies, markets and economic agents actually behave – with particular reference to innovation, knowledge, learning and institutions. Our purpose in this paper is to raise some questions about the importance of these frameworks from a policy (managerial) and analytic perspective, to outline some limitations of their utility, and to suggest some useful paths for investigation.     

An integrated production planning model for molds and end items

This study develops a mathematical modelling framework for simultaneously generating production plans for molds and the end items that are made with them. The inputs considered are the item demand (assumed constant over an infinite planning horizon), holding costs and shortage costs, together with the molds’ statistical lifetime distribution (in terms of number of uses) and costs pertaining to amortization, preventive replacements and corrective replacements.     

Long-Run Comovements in East Asian Stock Market Volatility

Two integrated stock markets are generally subjected to common shocks revealing that commonalities in fundamentals drive their underlying return processes. In such a case, volatility series should share a long-run component although their transitory components might temporary diverge. In this paper, we investigate stock market integration in East Asia by analyzing the co-persistent nature of their ex-post observed volatility. Using recent fractional cointegration techniques, we find that volatility of several markets converges in the long run to a common equilibrium. Our results reveal that a global integration process drives the most developed markets of the region, while no evidence of co-persistence appears for emerging markets.