Editorial

Abstract

Stock Market Volatility, Regional Development and Agribusiness

This issue of Applied Economics Journal concentrates on the stock market volatility and regional economics. An article investigates the relationship between the Iranian economic fluctuations and the stock market volatility. It is evident that such the relation falls back on the methodology used for causality investigation. In addition, another article employs the sample from New York Stock Exchange to examine how much the marginal debt can reflect the flow of information through the total volatility persistence. It shows that the volatility is an ARCH type of the stock returns. Apart from the stock market, an interesting paper studies the influence of Iran trade openness on concentration of economic activities in manufacturing industries at province level. The results are related to the implemented export promotion policies. The fourth paper pertaining to regional economics is to examine factors affecting regional economic growth. The two factors it find share one common property, positive externality, as indispensable in endogenous growth theory. Moreover, the book review for this issue at the heart describes the significance of technology, innovation, and intellectual property for agribusiness.