Rough and lonely road to prosperity: a reexamination of the sources of growth in Africa using Bayesian model averaging

This paper takes a fresh look at Africa's growth experience by using the Bayesian model averaging (BMA) methodology. BMA enables us to consider a large number of potential explanatory variables and sort out which of these variable can effectively explain Africa's growth experience. Posterior coefficient estimates reveal that key engines of growth in Africa are substantially different from those in the rest of the world. More precisely, it is shown that mining, primary exports and initial primary education exerted differential effect on African growth. These results are examined in relation to the existing literature. Copyright © 2008 John Wiley & Sons, Ltd.     

A resilience perspective of the SEEA

While the SEEA is an important advance in national accounting it remains deficient in a number of ways in regard to natural resources. The dynamic and interactive nature of ecosystems means that any linear, compartmentalised system of accounting will miss significant changes that influence human wellbeing. In particular, losses in resilience of critical capital stocks (through changes in underlying ecosystem variables that do not contribute directly to valued flows, and are therefore not included in the accounts) means that the accounts will not recognise that such stocks are becoming riskier, likely to collapse, and are therefore over‐valued. We present a stock‐based approach to measuring sustainable development (the Inclusive Wealth Approach of [Arrow KJ, Dasgupta P and Maler K‐G. (2003) Evaluating projects and assessing sustainable development in imperfect economies, Environmental and Resource Economics, 26:647-685]) at a regional scale, using an example from South East Australia, which includes an assessment of the resilience of critical capital stocks.     

Purchasing Power Parity and aggregation bias for a developing country: The case of Mexico

This paper investigates long-run Purchasing Power Parity (PPP) between the US and Mexico. We use a panel of disaggregated price data between the US and Mexico with a long time series to look at two types of aggregation bias. The first is examined in Imbs et al. — which we refer to as estimator aggregation bias — and the second is put forth by Broda and Weinstein — hereafter, data aggregation bias. The findings indicate substantial estimator aggregation bias and data aggregation bias. Although estimates using aggregate data and imposing homogeneous coefficients provide little evidence of PPP, findings with disaggregated data and heterogeneous coefficient estimators offer strong support. The results also suggest the presence of small-sample bias as examined in Chen and Engel, but with little effect on the qualitative results. Tradable goods and non-tradable goods show little distinction in convergence rates. Estimated half-lives are lower under flexible than fixed exchange rates and indicate rapid convergence during the Mexican peso crisis.     

Imperfect Capital Mobility: A General Approach to the Two-Sector Harris Todaro Model

This paper investigates the analytical implications of partially mobile capital among sectors arising in the context of the two-sector general-equilibrium Harris–Todaro (HT) model. It is shown that under partially mobile capital, unlike the case of totally mobile or immobile capital, labor growth (capital accumulation) may destabilize sectoral capital movement and lower the welfare of a small country if the agricultural rental rate is lower (higher) than the manufacturing rental rate. While the price–output response is always normal in a stable system, the Rybczynski type of factor endowment–output response requires more stringent conditions ( vis-à-vis perfectly mobile or immobile capital case).     

Competition under revenue-cap regulation with efficiency benchmarking: tariff related incentives for gas transmission system operators in merged markets

Journal of Regulatory Economics - In Europe, gas market mergers aim at reducing restrictions on gas wholesale markets. Market mergers also allow network users to book transport capacity at...     

A note on the allocation of time

A multi-commodity model in which time as well as nominal income is necessary in the process of consumption is analyzed. Duality theory is used to provide a counter example to the ‘Linder Theorem’ that a rise in real wages will decrease consumption of some good if it is more time intensive than the weighted average of the time intensity of all other commodities.     

Bemerkungen über Nutzen und Kosten

Ohne ZusammenfassungAus dem Englischen übersetzt von Dr. Gertrud Lovasy, Wien     

Technological change in the military aircraft industry

This paper analyzes technological change in the U.S. military aircraft industry. It divides this technological change into two components, methods of production and product quality innovations. The basic findings of this paper are obtained from a comparison of the F-4 and F-15 technologies. The results show that new production technologies reduce the costs of manufacturing a weapon system, but that product improvements substantially increase costs.