Confronting the implications of the Cournot model with industry and firm data

This paper derives testable implications of the standard Cournot models and confronts these implications with real world data. Though we cannot expect that real world may be characterized by a simple static homogeneous model, it is surprising that little empirical work exists on testing the implications of this most popular model of oligopoly and non cooperative game theory.We make use of three data sets for manufacturing industry, two of them on the firm level, one about firms grouped according to their size. The relation of the results to the predictions of the Cournot model is discussed, as well as its relation to alternative oligopoly models. We specifically focus at the question whether the implications of the oligopoly models on the performance of large versus small firms are in line with the data.     

Book Reviews

Book Reviewed in This Article: MULTINATIONAL COLLECTIVE BARGAINING ATTEMPTS H. R. Northrup, R. L. Rowan EMPLOYEE POTENTIAL, ISSUES IN THE DEVELOPMENT OF WOMEN WHITE-COLLAR PROLETARIAT: THE INDUSTRIAL BEHAVIOUR OF BRITISH CIVIL SERVANTS Michael P. Kelly ECONOMICS OF WAGES AND LABOUR L. C. Hunter C. Murray WORKERS' CO-OPERATIVES: JOBS AND DREAMS Jenny Thornley     

Versicherungstechnische Gesichtspunkte auf die finanziellen Fragen der Lebensversicherung

Kapitel I. Bibliographisches

Die versicherungstechnische Litteratur hat sich verhältnismässig wenig mit den aktuariell-finanziellen Fragen befasst. Bemerkenswert ist es deshalb, dass die meisten von den bis jetzt abgehaltenen neun internationalen Aktuarkongressen die eine oder die andere Frage aus oben erwähntem Gebiet in ihrem Programm aufgenommen haben. So z. B. beschäftigte sich der erste Kongress, der 1895 in Brüssel tagte, mit dem Gegenstand: “Des mesures qui pourraient être prises par les institutions qui contractent des engagements à long terme, pour se premunir contre les conséquences des variations du taux d intérêt.” Der Kongress im Jahre 1900 in Paris hatte in seinem Programm das Thema: “Méthodes à employer pour evaluer les titres mobiliers compris dans l'actif d'une Société quelconque.” Bei dem New Yorker Kongress 1903 wurde die Prage über “The Probable Future Course of the Rate of Interest” erörtert. Dem Wiener Kongress 1909 war die Frage über “Kapitalsanlagen der Versicherungsgesellschaften mit besonderer Berücksichtigung der modernen Entwickelung” zur Behandlung vorgelegt. Das Programm des Londoner Kongresses 1927 enthielt das Thema “Currency Depreciation as affecting Life Assurance Contracts”.     

A Machine Learning Analysis of the Recent Environmental and Resource Economics Literature

We use topic modeling to study research articles in environmental and resource economics journals in the period 2000–2019. Topic modeling based on machine learning allows us to identify and track latent topics in the literature over time and across journals, and further to study the role of different journals in different topics and the changing emphasis on topics in different journals. The most prevalent topics in environmental and resource economics research in this period are growth and sustainable development and theory and methodology. Topics on climate change and energy economics have emerged with the strongest upward trends. When we look at our results across journals, we see that journals have different topical profiles and that many topics mainly appear in one or a few selected journals. Further investigation reveal latent semantic structures across research themes that only the insider would be aware.

     

Kann der Zins ein Preis für „Warten“ sein?

Ohne Zusammenfassung     

Age heaping and numeracy: looking behind the curtain

Age‐heaping‐based numeracy indicators have served as valuable tools to derive basic human capital estimates, especially for periods where other indicators are unavailable. However, the accuracy of individual age statements usually remains unknown, and due to the lack of precise information it can only be assumed that excessive occurrence of multiples of five in age distributions reflects inferior numerical skills. This article addresses this lacuna by identifying 162 individuals in two independent data sources: self‐reported age statements and independently kept records which are based on family heritage books and church registers. This method makes it possible to identify individual misreporting and the degree of accuracy of each individual. Findings show that not everyone who reported a multiple of five was reporting an incorrect age, nor was it the case that everyone who reported an age that was not a multiple of five was reporting an accurate age. The empirical analysis shows that the commonly used binary numeracy indicator is correlated with the observed degree of accuracy in age statements, and that a more sophisticated occupational background reduces this inaccuracy. These results tentatively suggest that the commonly used binary indicator measuring age heaping is a valuable proxy for numerical skills and occupational background in a population.     

External technology acquisition in large multi-technology corporations

Based on different contractual forms and their associated degrees of organizational integration, a typology of strategies for technology acquisition (sourcing) is constructed. Based on a sample of corporations in Europe, Japan and US, it is shown that external acquisition of technology through various strategies increases in importance in general. Product case studies further show that external acquisition of technology is associated with technology diversification into increasingly costly new technologies. As a result corporations become multi-technological ('multech'). At the same time quasi-integrated corporate systems of innovation arise in which in-house R&D is managed together with a mix of strategies for external acquisition of technology, using various contractual forms. This presents new challenges to traditional in-house R&D management. Technology diversification is moreover shown to be associated with growth of sales as well as with growth of R&D expenditures. A high level of external technology acquisition presents risks that ought to lead companies to consider technology based product diversification.     

Money,Velocity, and the Stock Market

This paper provides a study of the relationship between money growth variability, velocity, and the stock market, using recent advances in financial econometrics. We estimate a trivariate VARMA, GARCH-in-Mean, BEKK model to quantify the effects of financial market and money supply instability. We investigate the robustness of the results to different definitions of money using monthly Divisia indices for the United States from the Center for Financial Stability (CFS). Empirical evidence supports significance of financial market and money supply volatility, and we conclude that Friedman’s money supply volatility hypothesis is alive and well.