We confront microeconomic theory with macroeconomic data. Unemployment results from two main micro-level decisions of workers and firms. Most of the efficiency wage and bargaining theories predict that over the business cycle, unemployment falls below its natural rate when the worker’s real...

Unanticipated shocks could lead to instability, which is reflected in statistically significant changes in distributions of random variables. Changes in the conditional moments of stationary variables are predictable. We provide a framework based on a statistic for the Sample Generalized...

I extend the Glick and Rogoff (1995) aggregate time-series, empirical, intertemporal model of country-investment (and the current account) to a sectoral-level, and estimate it for New Zealand. I fit the model to panel data of eleven industries from 1988-2009. The sectoral-level investment growth...

We use the work-leisure choice model to compute equilibrium weekly hours worked for a number of Arab countries, where actual statistics are unavailable. We show that the labor supply curve is elastic in all Arab countries, and provide a new measure of labor productivity. This finding confirms...

A persistent increase in the unemployment rate ignites speculations about whether the changes to unemployment are structural or cyclical. The New Zealand economy has been through major restructuring since the mid-1980s. The labour market’s institutional changes were the last in the sequence of...

I argue that state-ownership and state-management of oil on behalf of the Iraqi people is not conducive to democracy and inconsistent with the principles of free market. I also argue that it can adversely affect economic development and might further impoverish the average Iraqi citizen. To...

As far as we know there has been no, or very little, empirical examination of search models and unemployment – vacancy relationship in New Zealand. We empirically examine dynamic matching functions in the New Zealand labor market over the period 1986-2006. Further, it is well documented that...

I discuss econometric issues of high relevance to economists in central banks whose job is to interpret the permanency of shocks and provide policy advice to policymakers. Trend, unit root, and persistence are difficult to interpret. There are numerous econometric tests, which vary in their...

We use panel data for nine industries to evaluate research and development (R&D) investments in New Zealand over the past forty years. We estimate the impact of R&D stocks in a particular industry on output per person in that industry and on output per person in the rest of the economy. We...

Modern economic theories explain differences in productivity and economic growth across countries by differences in political and economic institutions, and differences in culture, geographical location, policies, and laws. The success of any of these theories in explaining the gap in...