نتایج جستجو برای: urbanization agglomeration that is named jacobs externalities
تعداد نتایج: 8677352 فیلتر نتایج به سال:
urbanization agglomeration that is named jacobs externalities, refers to the role of economic diversification in urban. localization agglomeration, marshal-arrow-romer (mar) externalities, is related to the concentration of firms activated in a special industry within a specified place. the purpose of this research is to explore the impact of different types of agglomeration economies on employ...
Although a rich literature has emerged analyzing the impact of localization, urbanization, and Jacobs externalities on regional innovativeness, the findings are still contradictory. Traditional studies differ mainly in the employed data but rely on similar empirical approaches. This paper argues in favor of using in this context production frontier approaches instead of the commonly employed pr...
Urban agglomeration economies are usually divided into two categories: urbanization economies and localization economies. In the 1970s and 1980s, a number of attempts were made to estimate urbanization economies and/or localization economies directly in the production function. Since the work by Glaeser et al. in 1992, however, historical effects on agglomeration called dynamic externalities in...
By reviewing and improving previous empirical works on this topic, the present paper investigates the dynamic externalities of agglomeration in China. Taking China’s top three municipalities (i.e., Beijing, Shanghai, and Tianjin) as sample regions, it assesses empirically and compares how three types of dynamic externalities—namely MAR (Marshall–Arrow–Romer), Jacobs, and Porter externalities—af...
This paper employs firm-level data to analyze the relative importance of firm characteristics and agglomeration externalities in explaining variation in innovation rates across firms. More specifically, we combine micro-data and census data to estimate the probability that a firm will introduce a goods, service or process innovation. We consider internal firm-level characteristics as well as ex...
Is there a 'new' economic geography of Information Technologies driven industries? Does the fast growth of the Digital Economy shape new regional specialization and industrial concentration? How do the different theories of agglomeration externalities contribute to the understanding of clustering dynamics in IT industries? This paper uses geographical data from 1992 and 1997 Census to examine s...
All over the world, Industrial agglomeration has become a key to improve efficiency of urban land use and regulate process urbanization. agglomeration, as universal economic geographical phenomenon, been extensively studied, but few scholars have discussed relationship between industrial efficiency. Based on this, after classifying type externalities, our study uses OLS GTWR models explore comp...
one of the most commonly used techniques to reduce the corrosion rate of rebar in concrete is addition substances named corrosion inhibitors into the concrete. corrosion inhibitor is chemical compounds that were added to concrete to prevent corrosion of steel in concrete. sodium nitrate is a type of anodic inhibitors that this study investigatesthe effect of this inhibitor on the properties of ...
Most models of regional agglomeration are based on the NEG (New Economic Geography) model in which returns to scale are pecuniary. We investigate the implications for regional agglomeration of a "Marshallian" model in which returns to scale derive from technological externalities. Workers are assumed to have heterogeneous "home region" preferences. The model is designed to explain how "second n...
Under review for publication in the Journal of Urban Economics, September 2014 ABSTRACT: This paper develops a spatial general equilibrium model that accommodates both congestion and agglomeration externalities, while firms’ and households’ land-use decisions are endogenous across continuous space. Focusing on the interaction between externalities and land use patterns, we examine the efficienc...
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