The phenomenon of rising wage inequality has been extensively documented in OECD countries. In the final quarter of the last century it appears to have been particularly marked in the US and UK. The drivers of rising inequality have been subject to econometric analysis and the relative roles of trade and skill-biased technical change evaluated. In this paper, we take an alternative approach, na...

This paper examines the e↵ects of liquidity on the demand for imports of non-durable consumers’ goods in Trinidad and Tobago. A parsimonious vector equilibrium correction model (VEqCM) is used to test the hypotheses that liquidity has both longand short-run e↵ects. The multivariate cointegration approach of Johansen and Juselius (1990) is used to determine long-run relations and general to spec...

Article history: Received 1 April 2010 Received in revised form 3 August 2011 Accepted 4 August 2011 Available online 11 August 2011 This paper uses a tri-variate structural VAR with a long-run identification scheme, akin to the Blanchard and Quah method, to identify external and domestic supply and demand shocks in 22 African countries between 1980 and 2005. Domestic supply shocks are found to...

Contrary to common belief, both the Earth’s human population and its economic output have grown faster than exponential for most of the known history. These growth rates are compatible with a spontaneous singularity occuring at the same critical time 2052± 10 signaling an abrupt transition to a new regime. In support, a multivariate analysis coupling population, capital, R&D and technology show...

This paper analyzes the impact of technological diversity on innovation inputs and success using Swiss firm-level panel data. While we do not find any impact of diversity on R&D intensity, we confirm a positive impact of diversity on patent applications as suggested by the literature. However, since patent applications reflect an intermediate innovation input rather than output, we extend the a...

This paper analyzes an approach to correcting spurious regressions involving unit-root nonstationary variables by generalized least squares (GLS) using asymptotic theory. This analysis leads to a new robust estimator and a new test for dynamic regressions. The robust estimator is consistent for structural parameters not just when the regression error is stationary but also when it is unit-root ...

We consider whether oil prices can account for business cycle asymmetries. We test for asymmetries based on the Markov switching autoregressive model popularized by Hamilton (1989), using the tests devised by Clements and Krolzig (2000). We select the transformation of the oil price of Lee, Ni and Ratti (1995), based on a linear analysis of the relationship between output growth and the oil pri...

This study presents an empirical analysis of the cost efficiency of a sample of Swiss multi-utilities operating in the distribution of electricity, natural gas and water. The multi-utilities that operate in different sectors are characterized by a strong unobserved heterogeneity. Therefore the measurement of their performance poses an important challenge for the regulators. The purpose of this ...

This paper investigates whether technological shocks, constructed to be consistent with the observed cross-country income dispersion, are also capable of accounting for development regularities related to capital accumulation. This question is approached via a quantitative theoretical analysis of an integrated world economy model. An open economy framework constrains country heterogeneity to be...

This paper evaluates quantitatively the effect of real money balances in a New Keynesian framework. Money in our model facilitates transactions and is introduced through a transactions cost technology. This technology acts like a distortionary consumption tax which varies endogenously with the nominal interest rate. In this setup the resultant Phillips curve becomes a function of the nominal in...