Iflatie en Rentestand

Ohne ZusammenfassungRede, uitgesproken bij de aanvaarding van het ambt van gewoon hoogleraar in de faculteit der economische wetenschappen aan de Vrije Universiteit te Amsterdam op vrijdag 19 februari 1971.     

Impacts de l'ouverture à la concurrence sur la R&D dans le secteur électrique

The aim of this paper is to analyse the impact of the opening of the competitive arena in regulated markets on the nature and intensity of innovation. The cases of the electricity sectors in the USA and England & Wales are taken as examples. The present condition and the evolution of R&D programmes and institutions in the American and English electric sectors are analysed. We show that the current regulatory reforms lead to significant cuts in R&D programmes, especially those focusing on new technological fields.     

A Cross-Country Database for Sector Investment and Capital

This article presents a new database of investment and capitalin agriculture, manufacturing, and the overall economy. It covers62 industrial and developing countries for the years 1967–92.A common method is used in the calculations to facilitate comparisonsacross countries and sectors. The sensitivity of the calculationsto choices of parameters and estimation methods is tested. Collectively,the data show that as economies grow, capital stocks accumulate,but the composition of capital changes. Together and individually,capital stocks in agriculture and manufacturing constitute asmaller share of the total capital stock than they did 20 yearsago. Capital-labor ratios show that agriculture has become morecapital intensive in most countries. The composition of agriculturalcapital has changed as well; capital from investments in orchardsand livestock has declined relative to capital from fixed investmentsin machinery, irrigation, and buildings.     

The effects of understanding rules and a worked example on the acquisition of procedural knowledge and task performance

Previous research (for example, Bonner and Walker, 1994) has investigated the impact of alternative forms of instruction and practice on both the acquisition of procedural knowledge and task performance. Responding to the call to consider alternative forms of instruction, this study reports the results of an experiment designed to distinguish between the effects of understanding rules and a worked example. Worked examples (such as previously prepared working papers, analysis sheets and spreadsheet templates) are of particular interest as they constitute an important source, frequently used by novice accountants, for understanding and performing various tasks.
The results indicate that understanding rules increase task performance through the acquisition of procedural knowledge, while a worked example provides task-specific heuristics that increase task performance but not procedural knowledge. The different benefits of the two forms of instruction emphasise the importance of matching instruction methods to learning objectives. Furthermore, combining the two forms of instruction lead to the highest levels of task performance even with limited practice and no feedback.
JEL classification: I20; M41     

A Regime‐Switching Approach to Modeling Rental Prices of U.K. Real Estate Sectors

This article uses regime‐switching models of the threshold type to analyze the adjustment process of rental prices for three U.K. commercial real estate sectors over the period 1974–2008. The nonlinear models outperform their linear counterparts in in‐sample fit. Their out‐of‐sample forecasting ability is better whenever the corresponding linear models contain a significant amount of neglected nonlinearity. Regime switches are triggered when the growth rates of rental price exceed certain threshold levels. For the industrial and retail sectors such regime switches occur in situations of strong excess demand, for the office sector they occur when there is strong excess supply.