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Zipf’s and Gibrat’s laws for migrations
Clemente, Jesús; González-Val, Rafael; Olloqui, Irene - Volkswirtschaftliche Fakultät, … - 2008
This paper analyses the evolution of the size distribution of the stock of emigrants in the period 1960-2000. Has the distribution of the stock of emigrants changed or has there been some convergence? This is the question discussed in this work. In particular, we are interested in testing the...
Persistent link: https://www.econbiz.de/10005836552
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Gibrat’s law for countries
González-Val, Rafael; Sanso-Navarro, Marcos - Volkswirtschaftliche Fakultät, … - 2008
If the population of a given country evolves according to Gibrat'�s Law, its growth rate will be independent of its initial size. This short paper further investigates this empirical regularity by the application of a suitable panel unit root test and non-parametric methods. The evidence...
Persistent link: https://www.econbiz.de/10005837090
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Gibrat’s law for cities, growth regressions and sample size
González-Val, Rafael; Lanaspa, Luis; Sanz, Fernando - Volkswirtschaftliche Fakultät, … - 2012
This paper uses un-truncated city population data from six countries (the United States, Spain, Italy, France, England and Japan) to illustrate how parametric growth regressions can lead to biased results when testing for Gibrat’s law in city size distributions. The OLS results show...
Persistent link: https://www.econbiz.de/10011258661
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Patterns in U.S. urban growth (1790–2000)
González-Val, Rafael; Lanaspa, Luis - Volkswirtschaftliche Fakultät, … - 2011
This paper reconsiders the evolution of the growth of American cities since 1790 in the light of new theories of urban growth. Our null hypothesis for long-term growth is random growth. We obtain evidence supporting random growth against the alternative of mean reversion (convergence) in city...
Persistent link: https://www.econbiz.de/10009021970
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Does venture capital investment really require spatial proximity? An empirical investigation
Fritsch, Michael; Schilder, Dirk - Fakultät Wirtschaftswissenschaften, Technische … - 2006
We examine the role of spatial proximity for Venture Capital (VC) investments in Germany. The main database is a survey … spatial proximity is far less important for VC investments than is often believed. For example, the results indicate that … syndication is partly used as an alternative to spatial proximity. Telecommunication does not work as a substitute for face …
Persistent link: https://www.econbiz.de/10009207006
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Do regional systems of innovation matter?
Fritsch, Michael - Fakultät Wirtschaftswissenschaften, Technische … - 2003
The paper deals with the significant impact of location on innovation activity that has been found in many empirical studies. Main elements of such an explanation are the specific problems of a division of innovative labor. Based on an outline of these issues the concept of a regional innovation...
Persistent link: https://www.econbiz.de/10009207020
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Die Geografie der Kreativen Klasse in Deutschland
Fritsch, Michael; Stützer, Michael - Fakultät Wirtschaftswissenschaften, Technische … - 2006
Wir analysieren die räumliche Verteilung verschiedener Kategorien kreativer Personen in Deutschland. Allgemein ist der Anteil der Kreativen in den Städten höher als auf dem Land. Ein etwas abweichendes Standortverhalten zeigen die freiberuflichen Künstler, für die auch in einigen...
Persistent link: https://www.econbiz.de/10009207029
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Measuring the efficiency of regional innovation systems: an empirical assessment
Fritsch, Michael; Slavtchev, Viktor - Fakultät Wirtschaftswissenschaften, Technische … - 2006
We measure 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) in a region to the number of inventions that have been registered by residents of that region. Two approaches...
Persistent link: https://www.econbiz.de/10009207043
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Measuring the Knowledge Base of Regional Innovation Systems in Germany in terms of a Triple Helix Dynamics
Leydesdorff, Loet; Fritsch, Michael - Fakultät Wirtschaftswissenschaften, Technische … - 2005
While a market economy seeks equilibrium, a knowledge-based economy may upset this tendency towards stabilization by adding the feedback of globalization. The interaction among the three subdynamics of economic exchange, technological innovation, and institutional control can be captured with a...
Persistent link: https://www.econbiz.de/10009207046
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Universities and innovation in space
Fritsch, Michael; Slavtchev, Viktor - Fakultät Wirtschaftswissenschaften, Technische … - 2006
We investigate the role of universities as a knowledge source for regional innovation processes. The contribution of universities is tested on the level of German NUTS-3 regions (Kreise) by using a variety of indicators. We find that the intensity and quality of the research conducted by the...
Persistent link: https://www.econbiz.de/10009207048