Shrinking due to corpulence? BMI in childhood predicts subsequent linear growth among US children and youth, 1963-1970
Marco Sunder
Annals of Human Biology,
2008
Abstract
While the USA is one of the most opulent countries, its population is not among the tallest but is among the most corpulent. This short report investigates the association between body mass index in childhood and subsequent change in height-for-age at the individual level, based on data from the National Health Examination Study (1963-1970). A sub-sample of participants in this survey was measured twice at intervals between 2.3 and 4.4 years, and assessed bone age can be used to account for differences in maturation at baseline. Regression results indicate that a BMI-for-age above the 85th percentile is associated with a reduction in growth by 0.03-0.06 height-for-age standard deviations per year, or roughly 1 cm within 4 years. An inefficiently high nutritional status in childhood may thus jeopardize subsequent linear growth. However, the trans-Atlantic height gap is considerably larger than what this empirical relationship could predict.
Read article
How Does Industry Specialization Affect the Efficiency of Regional Innovation Systems?
Michael Fritsch, Viktor Slavtchev
Jena Economic Research Papers, Nr. 2008-058,
No. 58,
2008
Abstract
This study analyzes the relationship between the specialization of a region in certain industries and the efficiency of the region in generating new knowledge. The efficiency measure is constructed by relating regional R&D input and output. An inversely u-shaped relationship is found between regional specialization and R&D efficiency, indicating the presence of externalities of both Marshall and Jacobs’ type. Further factors influencing efficiency are spillovers within the private sector as well as from public research institutions. The impact of both the specialization and the additional factors is, however, different for regions at different efficiency levels.
Read article
The Relationship between Knowledge Intensity and Market Concentration in European Industries: An inverted U-Shape
Niels Krap, Johannes Stephan
IWH Discussion Papers,
No. 3,
2008
Abstract
This paper is motivated by the European Union strategy to secure competitiveness for Europe in the globalising world by focussing on technological supremacy (the Lisbon - agenda). Parallel to that, the EU Commission is trying to take a more economic approach to competition policy in general and anti-trust policy in particular. Our analysis tries to establish the relationship between increasing knowledge intensity and the resulting market concentration: if the European Union economy is gradually shifting to a pattern of sectoral specialisation that features a bias on knowledge intensive sectors, then this may well have some influence on market concentration and competition policy would have to adjust not to counterfeit the Lisbon-agenda. Following a review of the available theoretical and empirical literature on the relationship between knowledge intensity and market structure, we use a larger Eurostat database to test the shape of this relationship. Assuming a causality that runs from knowledge to concentration, we show that the relationship between knowledge intensity and market structures is in fact different for knowledge intensive industries and we establish a non-linear, inverted U-curve shape.
Read article
Does Post-Crisis Restructuring Decrease the Availability of Banking Services? The Case of Turkey
H. Evren Damar
Journal of Banking and Finance,
No. 9,
2007
Abstract
This study examines the relationship between post-crisis bank consolidation and the number of bank branches in Turkey. Using a unique data set, the analysis addresses several issues related to the impact of market characteristics on branching behavior. The findings suggest that sales of failed institutions by the central authority lead to branch closures in small and uncompetitive markets where the buyer does not have a prior presence. Contrary to popular belief, mergers between healthy institutions do not always cause a decrease in the number of branches; rather, they are shown to increase the availability of banking services in concentrated markets.
Read article
The Impact of Competition on Bank Orientation
Hans Degryse, Steven Ongena
Journal of Financial Intermediation,
No. 3,
2007
Abstract
How do banks react to increased competition? Recent banking theory significantly disagrees regarding the impact of competition on bank orientation—i.e., the choice of relationship-based versus transactional banking. We empirically investigate the impact of interbank competition on bank branch orientation. We employ a unique data set containing detailed information on bank–firm relationships. We find that bank branches facing stiff local competition engage considerably more in relationship-based lending. Our results illustrate that competition and relationships are not necessarily inimical.
Read article
Requirements on Regulation Frameworks: What is the Best Way of Securing Efficiency in the Water Sector?
Peter Haug
Competition Policy in Network Industries, INFER Research Perspectives, Vol. 3,
2007
Abstract
The paper investigates the effects of several characteristics of regulatory frameworks in the water sector on the efficiency of water provision. Several requirements on efficient regulatory frameworks suggested in other studies of network industries are modified and others are derived from different economic theories of regulation. The resulting set of criteria is applied to the regulation systems of the Dutch, German and US-American water industry. A comparison of several performance indicators for the three countries suggests that some relationship between the design of regulatory frameworks and the price-quality-ratios in the water sector might exist.
Read article
Aid and Economic Freedom: An Empirical Investigation Using the Heritage Index
Tobias Knedlik, Franz Kronthaler
Journal of Development Perspectives,
No. 3,
2007
Abstract
The paper explores the relationships between economic freedom on the one side and development aid and IMF credit as approximation for conditional aid on the other side. After a short review of current literature, the paper develops a simple panel regression model to evaluate the relationships. In contrast to previous research, our results allow the rejection of the hypothesis that IMF credit increases economic freedom and that development aid is not contributing to economic freedom. It could not be shown that countries can be pushed towards economic freedom by aid conditions. The paper discusses explanations of the empirical findings.
Read article
Comparative Study of Multinational Companies in the Enlarged EU - A Technology Transfer Perspective
Johannes Stephan, Björn Jindra, I. Klugert
Conference Proceedings of „Comparing International Competitiveness of Manufacturing Companies in the EU with Special Emphasis on Central and Eastern Europe“,
2007
Abstract
Our study makes a novel contribution to the analysis of the link between multinational companies' heterogeneity and technological transfer. Thereby, we focus on internal technology transfer i.e. technology flowing from the multinational enterprise to the foreign subsidiary. We estimate the impact of corporate governance, subsidiary objectives, local absorptive capacity, as well as the cultural and geographic distance as potential determinants of internal technology transfer. We control for other observed firm- and industry-specific effects as well as unobserved host-country effects. We test our hypothesis with a firm-level data simultaneously collected from 434 foreign subsidiaries in Poland, Hungary, Estonia, Slovakia and Slovenia in 2002/2003. The evidence seems to indicate that the nature of the parent-subsidiary relationship is subject to the institutional context, subsidiary objectives, and risks involved for the foreign parent. These factors in turn determine the incentives for transferring knowledge to the subsidiary. Foreign subsidiaries' absorptive capacity enhances the intensity of internal technology transfer. In contrast geographic distance seems to limit the extent of technology transfer within the company. Country-of-origin-effects seem not to be statistically relevant for internal technology transfer once we control for observable firm, industry, and unobserved host-country-specific effects.
Read article
Industry Specialization, Diversity and the Efficiency of Regional Innovation Systems
Michael Fritsch, Viktor Slavtchev
Jena Economic Research Papers, Nr. 2007-018,
No. 18,
2007
Abstract
Innovation processes are characterized by a pronounced division of labor between actors. Two types of externality may arise from such interactions. On the one hand, a close location of actors affiliated to the same industry may stimulate innovation (MAR externalities). On the other hand, new ideas may be born by the exchange of heterogeneous and complementary knowledge between actors, which belong to different industries (Jacobs’ externalities). We test the impact of both MAR as well as Jacobs’ externalities on innovative performance at the regional level. The results suggest an inverted u-shaped relationship between regional specialization in certain industries and innovative performance. Further key determinants of the regional innovative performance are private sector R&D and university-industry collaboration.
Read article
What Determines the Efficiency of Regional Innovation Systems?
Michael Fritsch, Viktor Slavtchev
Jena Economic Research Papers, Nr. 2007-006,
No. 6,
2007
Abstract
We assess the efficiency of regional innovation systems (RIS) in Germany by means of a knowledge production function. This function relates private sector research and development (R&D) activity in a region to the number of inventions that have been registered by residents of that region. Different measures and estimation approaches lead to rather similar assessments. We find that both spillovers within the private sector as well as from universities and other public research institutions have a positive effect on the efficiency of private sector R&D in the respective region. It is not the mere presence and size of public research institutions, but rather the intensity of interactions between private and public sector R&D that leads to high RIS efficiency. We find that relationship between the diversity of a regions’ industry structure and the efficiency of its innovation system is inversely u-shaped. Regions dominated by large establishments tend to be less efficient than regions with a lower average establishment size.
Read article