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Whereas initially physical capital and later, knowledge capital were viewed as crucial for growth, more recently a very different factor, entrepreneurship capital, has emerged as a driving force of economic growth. In this paper, we define a region's capacity to create new firms start-ups as the region's entrepreneurship capital. We then investigate the local embeddedness of this variable and which variables have an impact on this variable. Using data for Germany, we find that knowledge-based entrepreneurship capital is driven by local levels of knowledge creation and the acceptance of new ideas, indicating that local knowledge flows play an important role. Low-tech entrepreneurship capital is rather increased by regional unemployment and driven by direct incentives such as subsidies. All three measures are locally clustered, indicating that indeed, entrepreneurship capital is a phenomenon that is driven by local culture, and is therefore locally bounded. Mientras que inicialmente el capital físico, y posteriormente el capital conocimiento, fue considerado crucial para el crecimiento, más recientemente un factor muy diferente, el capital empresarial de espíritu emprendedor ( entrepreneurship capital), ha surgido como una fuerza impulsora de crecimiento económico. En este artículo, definimos como capital empresarial emprendedor la capacidad de una región para originar la puesta en marcha de nuevas empresas. A continuación investigamos el arraigo local de esta variable y las variables que tienen un impacto sobre esta variable. Usando datos de Alemania, hallamos que el capital empresarial emprendedor basado en el conocimiento está motivado por niveles locales de creación de conocimiento y la aceptación de nuevas ideas, indicando que los flujos de conocimiento local juegan un papel importante. El capital empresarial emprendedor basado en bajas tecnologías aumenta con el desempleo regional y está motivado por incentivos directos como subsidios. Las tres variables están agrupadas localmente ( locally clustered), indicando que sin duda el capital empresarial emprendedor es un fenómeno motivado por la cultura local, y por tanto atribuible a una localidad. [ABSTRACT FROM AUTHOR]

This paper presents a model of endogenous business cycles in the presence of knowledge spillovers and a time-to-build restriction. There are two key assumptions that characterize the model: (i) the payoff to each firm depends on the aggregate state of knowledge, and (ii) the innovation of a project is time-consuming. Under those assumptions, a simple structure is shown to be described by a piecewise linear difference equation with a discontinuity. We show that the resulting dynamics generated by such a dynamical system leads to an asymmetric periodic cycle of arbitrary period that appears to switch repeatedly between different regimes. [Copyright &y& Elsevier]