Reconsidering the welfare cost of inflation in the US: a nonparametric estimation of the nonlinear long-run money-demand equation using projection pursuit regressions

This paper, first, estimates the appropriate, log–log or semi-log, linear long-run money-demand relationship capturing the behavior US money demand over the period of 1980:Q1–2010:Q4, using the standard linear cointegration procedures found in the literature, and the corresponding nonparametric version of the same based on projection pursuit regression (PPR) methods. We then, compare the resulting welfare costs of inflation obtained from the linear and nonlinear money-demand cointegrating equations. We make the following observations: (i) the appropriate money-demand relationship for the period of 1980:Q1–2010:Q4 is captured by a semi-log function; (ii) based on the estimation of semi-log cointegrating equations, the welfare cost of inflation was found to at the most lie between 0.0131 % of GDP and 0.2186 % of GDP for inflation rates between 0 and 10 %, and; (iii) in comparison, the welfare cost of inflation obtained from the semi-log non-linear long-run money-demand function, derived using the PPR method, for 0–10 % of inflation ranges between 0.4930 and 1.9468 % of GDP. However, the standard errors associated with the welfare cost estimates obtained from PPR relative to the linear models tend to indicate that the nonlinear money demand provides more precise estimates of the welfare costs primarily for higher rates of inflation.     

South Africa’s monetary policy independence: evidence from a Global New-Keynesian DSGE model

We study the response of South African monetary policy decisions to foreign monetary policy shocks. We estimate the extent of foreign monetary policy pass through by augmenting standard Taylor rules and comparing the results within the context of a Global New-Keynesian Dynamic Stochastic General Equilibrium (DSGE) model. The general equilibrium model captures important spill-over effects that would otherwise have been ignored in a single equation set-up. The results show that the relationship between foreign monetary policy shocks and South African interest rates is complicated – South Africa does not import foreign monetary policy directly, but is still affected. Except for the US, an increase in foreign interest rates leads to a decrease in South African interest rates – highlighting the complex channels that the monetary policy authority has to monitor outside of its economy.     

Convergence in Income Inequality: Further Evidence from the Club Clustering Methodology across States in the U.S.

This paper contributes to the sparse literature on inequality convergence by empirically testing convergence across states in the U.S. This sample period encompasses a series of different periods that the existing literature discusses -- the Great Depression (1929–1944), the Great Compression (1945–1979), the Great Divergence (1980-present), the Great Moderation (1982–2007), and the Great Recession (2007–2009). This paper implements the relatively new method of panel convergence testing, recommended by Phillips and Sul (2007). This method examines the club convergence hypothesis, which argues that certain countries, states, sectors, or regions belong to a club that moves from disequilibrium positions to their club-specific steady-state positions. We find strong support for convergence through the late 1970s and early 1980s, and then evidence of divergence. The divergence, however, moves the dispersion of inequality measures across states only a fraction of the way back to their levels in the early part of the twentieth century.     

Falling behind and catching up: India's transition from a colonial economy

India fell behind during colonial rule. The absolute and relative decline of Indian GDP per capita with respect to Britain began before colonization and coincided with the rise of the textile trade with Europe. However, the fortunes of the traditional textile industry cannot explain the decline in the eighteenth century and stagnation in the nineteenth century as India integrated into the global economy of the British Empire. Inadequate investment in agriculture and consequent decline in yield per acre stalled economic growth. Modern industries emerged and grew relatively fast. The reversal began after independence. Policies of industrialization and a green revolution in agriculture increased productivity in agriculture and industry. However, India's growth in the closing decades of the twentieth century has been led by services. A concentration of human capital in the service sector has origins in colonial policy. Expenditure on education prioritized higher education, creating an advantage for the service sector. At the same time, the slow expansion of primary education lowered the accumulation of human capital and put India at a disadvantage in comparison with the fast‐growing economies of East Asia.     

Regional Trade Arrangements in Africa: Past Performance and the Way Forward

Abstract: Regional trade arrangements (RTAs) in Africa have been ineffective in promoting trade and foreign direct investment. Relatively high external trade barriers and low resource complementarity between member countries limit both intra‐ and extraregional trade. Small market size, poor transport facilities and high trading costs make it difficult for African countries to reap the potential benefits of RTAs. To increase regional trade and investment, African countries need to undertake more broad‐based liberalization and streamline existing RTAs, supported by improvements in infrastructure and trade facilitation. Early action to strengthen the domestic revenue base would help address concerns over revenue losses from trade liberalization.