The New Trade Theory predicts that international trade lowers prices for consumers and expands the choices available to them. This study shows that both predictions may no longer hold once adjustments in the retail sector are taken into account. I present a new model of retailing in general...

Excessive concentration increases national risk in an uncertain world. This paper views economic and political diversification as an essential aspect of national risk management aimed at promoting efficiency, growth, and welfare. The paper first presents economic and political diversification...

We show using detailed firm-level Chinese data that, among small exporters, firms selling to a more diversified set of countries have more volatile exports, while the opposite holds among large exporters. This result, which stands in marked contrast to standard portfolio theory for small...

A positive relationship between firm size and product diversification is a long-standing stylized fact. However, so far there is no appropriate theoretical model to explain the underlying forces of this observation. This paper analyzes an oligopoly model with asymmetric multiproduct frms, which...

Natural resource discoveries, even when fairly modest in terms of the revenues they are expected to generate, can have significant macroeconomic effects and implications for the conduct of fiscal and monetary policy. In this respect, Uganda is no different from other oil-rich countries. In five...

Countries have made considerable efforts to diversify their energy sources from fossil fuels to renewables in the last two decades to achieve sustainable economic development. However, it is widely argued that the countries may experience sluggish economic development during the energy...

Asset pricing and climate policy are analyzed in a global economy where consumption goods are produced by both a green and a carbon-intensive sector. We allow for endogenous growth and three types of damages from global warming. It is shown that, initially, the desire to diversify assets...

This paper investigates dynamic conditional correlations between stock and REIT markets in both Turkey and the U.S. We use an Asymmetric DCC - GJR - GARCH model to estimate the dynamic conditional correlation at daily, weekly, and monthly frequencies. Our contribution is threefold. First, we...

We study the investor behavior on a leading peer-to-business lending platform and find evidence of two new investment biases - a default shock bias and a deep market bias. First, we find investors to stop investing in new loans and to cease from diversifying their portfolio after experiencing a...

Because excessive specialization can be risky, diversification matters for sustainable development. A case study of Madagascar, this paper begins by briefly discussing economic and institutional diversification and presenting a simple model of production possibilities to illuminate the possible...