GROWTH AND WELFARE EFFECTS OF WORLD MIGRATION

Using a two‐bloc endogenous growth model calibrated to two generic sending and receiving countries of equal size, we assess the growth and welfare impact of world migration flows of different skill compositions. The sending country (East) has a lower total factor productivity and a lower endowment of skilled labour. Migration can induce two growth‐enhancing effects: an efficiency effect from the more efficient use of labour in the receiving country (West) and a sectoral reallocation effect from a fall in the host country skilled–unskilled wage rates. Despite growth gains, there are both winners (migrants, the representative Western non‐migrant household) and losers (the representative Eastern household remaining). Remittances can see the latter group joining the winners.     

Partial information and volatility in a two-bloc world

This paper examines the effects of partial information on volatility and on the design of simple feedback rules in a rational expectations context. Previous studies have investigated these effects using small analytical models. Here we employ an empirical two-bloc model derived from the OECD Interlink model. The main conclusions are that when current asset prices are observed, but GDP is observed with a delay, then the effect on volatility is small, compared to the full information case. Likewise the choice of simple feedback rules is little affected, although a non-optimal use of information in their design may lead to a deterioration in performance.     

Fiscal and monetary policy in a monetary union: Credible inflation targets or monetized debt?

Fiscal and Monetary Policy in a Monetary Union: Credible Inflation Targets or Monetized Debt? —The paper examines the interrelationship between fiscal and monetary policy in a two-country monetary union. The worst scenario occurs when an independent central bank sets the nominal interest rate and responds to rising government debt/GDP ratios by monetization. The result is high inflation, high debt/GDP ratios and a large public sector. Government debt and inflation are contained if the governments bear sole responsibility for solvency, but the public sector remains excessively large. The best scenario occurs if the central bank removes the incentive for the governments to engineer surprise inflation by credible inflation targeting.     

Linear-quadratic approximation, external habit and targeting rules

We examine the linear-quadratic approximation of nonlinear dynamic stochastic optimization problems. A discrete-time version of Magill [1977a. A local analysis of N-sector capital accumulation under uncertainty. Journal of Economic Theory 15(2), 211–219] is generalized to models with forward-looking variables paying special attention to second-order conditions. This is the ‘large distortions’ case in the literature. We apply the approach to monetary policy in a DSGE model with external habit in consumption. We then develop a condition for ‘target-implementability’, a concept related to ‘targeting rules’. Finally, we extend the approach to a comparison between cooperative and non-cooperative equilibria in a two-country model and show that the ‘small distortions’ approximation is inappropriate for this exercise.     

Quantifying and sustaining welfare gains from monetary commitment

Our objectives are: to quantify the stabilization welfare gains from commitment; to examine how commitment to an optimal rule can be sustained as an equilibrium; to find a simple interest rate rule that approximates the optimal commitment one. We utilize an empirical micro-founded euro-area DSGE model, a quadratic approximation of household utility as the welfare criterion, employing a nominal interest rate lower bound. In contrast to previous studies, we find significant commitment stabilization gains of around a 0.4-0.5% equivalent permanent consumption increase, and with higher price stickiness gains over 2%. We find that a simple optimized commitment rule responding to inflation and the real wage mimics the optimal one.     

A Goldsmith Exercise for Learning Money Creation

In this article, the authors outline a classroom exercise involving goldsmiths designed to improve undergraduate students’ understanding of how banks create money. This concept is important to macroeconomics and money and banking courses, yet students frequently struggle with it, largely due to the nonphysical nature of deposits and reserves. In contrast, gold-based banking systems tend to be more intuitive because of the physical nature of gold. By simulating interactions among a goldsmith, a depositor, a merchant, and a borrower in a gold-based system, students gain a deeper understanding of reserves and money creation. In particular, the exercise illuminates the intricate link between lending and the creation of new money, and highlights the importance of fractional reserve banking and reserve deposits.     

The Quest for Quality Improvement: Using Six Sigma at Starwood Hotels and Resorts

In 2001, Starwood Hotels and Resorts announced that it would be the first hospitality company to embrace Six Sigma, a quality improvement program where the development and adoption of innovative customer-focused solutions were to result in improving the quality and consistency of guests' experiences and lead to enhanced financial performance. The purpose of this article is to illustrate this process improvement program and to document the application of Six Sigma within the hospitality industry. Findings indicated an increased use of cross-functional team approaches, effective use of expanded stakeholder partnerships, and the adoption of objective techniques and statistical testing to solve problems and improve the bottom line.     

Dropouts,Defaulters, and Continuing Borrowers: Client Exit from Microfinance

High dropout rates are a problem faced by many microfinance institutions, with borrowers exiting after a few loans. The curiosity of dropouts is that, unlike defaulters, they repay their loans. To understand this I investigate differences across borrowers using data from Zimbabwe. I find that negative shocks are a significant predictor of dropout, but not of default, and that social networks are the most important correlate of on‐time repayment. The results show the importance of social networks in determining credit relationships.