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Registros recuperados: 17
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Morphological characterization with image analysis of cocoa beverage powder agglomerated with steam Ciênc. Tecnol. Aliment.
Vissotto,Fernanda Zaratini; Giarola,Raquel Carolina; Jorge,Lívia Calegari; Makita,Gisele Tokie; Cardozo,Gina Maria Bueno Quirino; Rodrigues,Maria Isabel; Menegalli,Florencia Cecilia.
In this study, the morphological characteristics of cocoa beverage powder granules under minimal, average, and maximal process conditions of a steam agglomerator were studied. a stereoscopic microscope coupled to a digital camera was used for the morphological analysis. The images were analyzed to obtain shape and size descriptors. aiming to evaluate the descriptors, 150 particles were analyzed. The results showed that there was no difference between the shape descriptors - compacity, circularity, roughness, and aspect ratio - in the operating conditions evaluated. It was observed that the cocoa beverage powder granules are elongated in shape. The size descriptors, area, perimeter, perimeter of convex bounding polygon, minimal and maximal Feret diameter,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agglomeration; Steam; Cocoa beverage powder; Morphological analysis; Particle shape; Particle size.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612014000400001
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Agglomeration, Spatial Interaction and Convergence in the EU AgEcon
Brauninger, Michael; Niebuhr, Annekatrin.
We investigate the convergence process among EU regions between 1980-2002 taking into account the effects of spatial heterogeneity and spatial spillover effects. The spatial regimes model allows for different steady-state growth paths. In contrast to previous analyses, the regimes in this paper refer to spatial categories, i.e. we assume that agglomerations, urbanised and rural regions are characterised by group-specific steadystates. Moreover, the regression analysis considers the effects of interaction among neighbouring regions, possibly leading to a spatial dependence of regional growth rates. We check whether spatial dependence is caused by spatial spillovers or based on country effects.
Tipo: Working or Discussion Paper Palavras-chave: Convergence; Agglomeration; European Union; Spatial econometrics; Quantile regression; International Development; C21; O52; R11.
Ano: 2005 URL: http://purl.umn.edu/26150
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Environmental Policy, Spatial Spillovers and the Emergence of Economic Agglomerations AgEcon
Kyriakopoulou, Efthymia; Xepapadeas, Anastasios.
We explain the spatial concentration of economic activity, in a model of economic geography, when the cost of environmental policy - which is increasing in the concentration of emissions - and an immobile production factor act as centrifugal forces, while positive knowledge spillovers and iceberg transportation costs act as centripetal forces. We study the agglomeration effects caused by trade-offs between centripetal and centrifugal forces. The above effects govern firms’ location decisions and as a result, they define the distribution of economic activity across space. We derive the rational expectations equilibrium and the social optimum, compare the outcomes and characterize the optimal spatial policies.
Tipo: Working or Discussion Paper Palavras-chave: Agglomeration; Spatial Economics; Environmental Policy; Knowledge Spillovers; Transportation Cost; Environmental Economics and Policy; R3; Q5; H2.
Ano: 2009 URL: http://purl.umn.edu/54289
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A Note on the Equilibrium Properties of Locational Sorting Models AgEcon
Bayer, Patrick; Timmins, Christopher.
A central feature of many models of location choice – whether of firms or households, within or across cities – is the role of local interactions or spillovers, whereby the payoffs from choosing a location depend in part on the number or attributes of other individuals or firms that choose the same or nearby locations in equilibrium. The main goal of this paper is to develop the equilibrium properties of a broadly applicable and readily estimable class of sorting models that allow the location decision to depend on both fixed local attributes (including unobserved attributes) and such local interactions. In particular, we prove uniqueness in the case of congestion effects and use a series of simulations to demonstrate that a unique equilibrium is more...
Tipo: Working or Discussion Paper Palavras-chave: Local spillovers; Social interactions; Economic geography; Natural advantage; Endogenous sorting; Discrete choice models; Agglomeration; Congestion; Random utility; Industrial Organization; H0; R0; R2; R3.
Ano: 2003 URL: http://purl.umn.edu/28378
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Agglomeration Externalities and Technical Efficiency in Pig Production AgEcon
Larue, Solene; Latruffe, Laure.
The objective of the paper is to assess the effects of agglomeration on technical efficiency of French pig farms. We use a two-stage method to evaluate the effects of agglomeration on technical efficiency. The first stage consists in calculating pig activity’s efficiency scores with the non-parametric method Data Envelopment Analysis (DEA). The second stage is a truncated regression of these scores on agglomeration variables. Data are for 899 French pig producers in 2004. Results suggest that these farms were as much affected by positive agglomeration externalities (that are knowledge spillovers due to farms’ density, and also arise from farms’ closeness to downstream market) as any other businesses. There was however no evidence of negative externalities...
Tipo: Conference Paper or Presentation Palavras-chave: Agglomeration; Externalities; Data Envelopment Analysis; Industrial Organization; Livestock Production/Industries.
Ano: 2008 URL: http://purl.umn.edu/44272
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Modelling the Spatial Structure of Pig Production in Denmark AgEcon
Larue, Solene; Abildtrup, Jens; Schmitt, Bertrand.
In Denmark, the concentration of pig production is highest in the western part of the country. However, there may be even larger local differences in the number of pigs produced. In this study we analyze the determinants of the location of pig production in Denmark with particular focus on spatial externalities and the interaction between the location of pig production and upstream sector and slaughterhouses. It is the assumption that the location of slaughterhouses is influenced by the location of the primary producers, implying that this variable is endogenous, whereas the location of primary producers is independent of the location of slaughterhouses. This is due to the fact that transportation costs of pigs are paid by the cooperatives owning the...
Tipo: Conference Paper or Presentation Palavras-chave: Agglomeration; Externalities; Spatial Econometrics; Polluted Production; Livestock Production/Industries.
Ano: 2008 URL: http://purl.umn.edu/44281
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LOCATION OF VERTICALLY LINKED INDUSTRIES UNDER FREE TRADE: CASE STUDIES OF ORANGE JUICE AND TOMATO PASTE IN THE WESTERN HEMISPHERE AgEcon
Hartman, Darcy A.; Sheldon, Ian M.; Tweeten, Luther G..
The objective of this study was to determine the economic impact on the United States of removing tariff barriers on imports of concentrated orange juice and tomato paste from South America. The study highlighted an agglomeration model of industry location recognizing imperfect competition and increasing returns. The results were contrasted with those from a competitive model with conventional estimates of supply and demand elasticities. Because the assumptions of the models differed, the results also differed. The agglomeration model indicated that the United States would gain market share of production and processing with the removal of tariffs. In contrast, the competitive model indicated that the United States would lose market share in production...
Tipo: Working or Discussion Paper Palavras-chave: Oranges; Tomatoes; Juice; Paste; Model; Agglomeration; Competitive; Comparative advantage.; Industrial Organization; International Relations/Trade.
Ano: 1999 URL: http://purl.umn.edu/14580
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MULTIFUNCTIONAL AGRICULTURE: AN ENGINE OF REGIONAL ECONOMIC GROWTH? AgEcon
Randall, Alan.
The historical role of agriculture in economic geography and recent conceptual developments – including multifunctional agriculture (MFA), the new economic geography, amenity-driven growth, and the “world is flat” and “creative class” hypotheses – are examined, and recent empirical research in North America and Europe is reviewed, in order to assess the potential for MFA as an engine of regional economic growth. Ideal MFA policy corrects market failures and is mostly amenity-augmenting. It has the capacity to enhance opportunities for farmers on urban fringe; stimulate growth in high-amenity rural regions accessible to cities that offer opportunities for high-value work; and generate growth in relatively remote high-amenity regions. The scope for...
Tipo: Journal Article Palavras-chave: Multifunctional agriculture; Regional economic development; Agglomeration; Amenity driven growth; Peri-urban areas; Fiscal transfers; Agricultural and Food Policy; Food Security and Poverty.
Ano: 2010 URL: http://purl.umn.edu/91106
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Geographical Analysis of US Green Sector Industry Concentration AgEcon
Register, D. Lane; Lambert, Dayton M.; English, Burton C.; Jensen, Kimberly L.; Menard, R. Jamey; Wilcox, Michael D..
This paper analyzes the geographic distribution of “green energy” sector clustering in the lower 48 United States using recent developments in industry concentration analysis. Evidence suggests that the ten green energy subsectors and the aggregate of the firms comprising the green energy sector are regionally concentrated. Positive changes in industry concentration from 2002 to 2006 tended to be greatest in non-metropolitan counties, suggesting comparative advantage with respect to site location for the composite of firms making up these sectors.
Tipo: Presentation Palavras-chave: Agglomeration; Location Quotient; Renewable Energy; Community/Rural/Urban Development; Industrial Organization; Research and Development/Tech Change/Emerging Technologies.
Ano: 2012 URL: http://purl.umn.edu/119742
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The Determinants of Agglomeration in Health Care Sector Employment in US Metropolitan areas AgEcon
Mishra, Bhawani P..
Paper Presented on 41st Annual and Conference Mid-Continent Regional Science Association (MCRSA), June 3-5, 2010 St. Louis, MO
Tipo: Conference Paper or Presentation Palavras-chave: Agglomeration; Panel data; Metropolitan area; Community/Rural/Urban Development.
Ano: 2010 URL: http://purl.umn.edu/93896
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On the Endogeneity of an Exogenous OCA-Criterion: The Impact of Specialisation on the Synchronisation of Regional Business Cycles in Europe AgEcon
Belke, Ansgar; Heine, Jens M..
This paper empirically assesses the impact of specialisation on the synchronisation of regional business cycles in two core countries of EMU, namely France and Germany. Several specialisation indices are introduced and some first stylised facts about interregional business cycle correlations are derived. Second, region pair specific and pooled estimations are enacted and tested for robustness in order to calculate the impact of specialization on the degree of business cycle synchronisation. However, our regression results confirm the hypothesis of a positive impact only partly, but they underline the problem of a common monetary policy for uncommon regions which has already existed in the DM- and in the Franc-zone before. Der vorliegende empirische Beitrag...
Tipo: Working or Discussion Paper Palavras-chave: Agglomeration; Specialisation; Regional Employment; European Monetary Union; Regional Business Cycles; Synchronisation; F15; Community/Rural/Urban Development; Labor and Human Capital; E32; R23.
Ano: 2001 URL: http://purl.umn.edu/26382
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Glocalisation, Foreign Direct Investment and Regional Development Perspectives: Empirical Results for West German Regions AgEcon
Knodler, Hermann; Albertshauser, Ulrich.
The present paper examines the economic development perspectives of the manufacturing sector of 31 major West German regions in the process of globalisation. Public statistics do not provide FDI data on a regional basis. Therefore our study was based on indicators based on the data from the INDAT-file which gives information about some 6,500 West German manufacturing firms in 1986, 1990 and 1996. The paper draws a stylised picture of the regional structure of West German FDI involvement in the manufacturing sector. The present participation in glocalisation benefits and the mid term development perspectives showed that Hamburg, Darmstadt and Oberbayern belong to the winners of glocalisation. In order to evaluate the long term development perspectives of...
Tipo: Working or Discussion Paper Palavras-chave: Regional Development; Agglomeration; Glocalisation; Manufacturing; Foreign Direct Investment; F23; O18; R11; Community/Rural/Urban Development; International Relations/Trade.
Ano: 2001 URL: http://purl.umn.edu/26402
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TAX INCENTIVES: AN EFFECTIVE DEVELOPMENT STRATEGY FOR RURAL COMMUNITIES? AgEcon
Rainey, Daniel V.; McNamara, Kevin T..
As national and local economies become more globalized, many rural areas are going to find it more difficult to compete for private capital investments. A traditional tool, modifications to tax policy, of state and local governments will not be as effective (for many communities it has never been effective) in the future. These communities will need to seek other avenues of growth. However, for many rural communities even alternative avenues will not lead to enhanced economic opportunity.
Tipo: Journal Article Palavras-chave: Agglomeration; Rural development; Tax policy; Community/Rural/Urban Development; R51; R58; O21; O23; R11; R38.
Ano: 2002 URL: http://purl.umn.edu/15463
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An Empirical Analysis of Agglomeration Effect in the Japanese Food Industry -Panel Analysis Using Flexible Translog Production Function- AgEcon
Kageyama, Masahiro; Tokunaga, Suminori; Akune, Yuko.
In this paper, we examine the existence of agglomeration effect on production in the Japanese food industry from 1985 to 2000 using plant-level 4-digit subclassification, panel dataset and new agglomeration index in Akune and Tokunaga (2005), and Tokunaga, Kageyama, and Akune (2005), based on Ellison and Glaeser (1997). This is an improvement on the the conventional indices such as Location Quotient (LQ) or Location Gini Coefficient (L).When we apply a flexible translog production function and cost share equation as suggested by Kim (1992), we find that around 2% of positive agglomeration effect exists in absence of any restriction on homotheticity in the the case of employment based agglomeration (Gamma EG ).
Tipo: Conference Paper or Presentation Palavras-chave: Agglomeration; Japanese food industry; Panel data analysis; Flexible translog production functions; Agribusiness; R12; R3; Q59.
Ano: 2006 URL: http://purl.umn.edu/25510
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Estimating Equilibrium Models of Sorting Across Locations AgEcon
Bayer, Patrick; Timmins, Christopher.
With the growing recognition of the role played by geography in all sorts of economic problems, there is strong interest in measuring the size and scope of local spillovers (i.e., simple anonymous agglomeration or congestion effects, or more complicated interactions between individuals or firms of specific types). It is well-understood, however, that such spillovers cannot be distinguished from unobservable local attributes using just the observed location decisions of individuals or firms. We propose an empirical strategy for recovering estimates of spillovers in the presence of unobserved local attributes for a broadly applicable class of equilibrium sorting models. This approach relies on an instrumental variables strategy derived from the internal...
Tipo: Working or Discussion Paper Palavras-chave: Local spillovers; Location choice; Economic geography; Natural advantage; Social interactions; Network effects; Endogenous sorting; Discrete choice models; Agglomeration; Congestion; Institutional and Behavioral Economics; H7; R0; R2; R3.
Ano: 2003 URL: http://purl.umn.edu/28448
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Mapping the Evolution of "Clusters": A Meta-analysis AgEcon
Maggioni, Mario A.; Gambarotto, Francesca; Uberti, Teodora Erika.
This paper presents a meta-analysis of the “cluster literature” contained in scientific journals from 1969 to 2007. Thanks to an original database we study the evolution of a stream of literature which focuses on a research object which is both a theoretical puzzle and an empirical widespread evidence. We identify different growth stages, from take-off to development and maturity. We test the existence of a life-cycle within the authorships and we discover the existence of a substitutability relation between different collaborative behaviours. We study the relationships between a “spatial” and an “industrial” approach within the textual corpus of cluster literature and we show the existence of a “predatory” interaction. We detect the relevance of...
Tipo: Working or Discussion Paper Palavras-chave: Cluster; Life-Cycle; Cluster Literature; Textual Analysis; Agglomeration; Co-Authorship; Community/Rural/Urban Development; O18; R12; Z13; B41.
Ano: 2009 URL: http://purl.umn.edu/54293
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Agglomeration Effects and Japanese Food Industry Investment in China: Evidence from the Cities AgEcon
Jin, Shaosheng; Tokunaga, Suminori; Akune, Yuko; Kageyama, Masahiro.
This paper uses the data from Chugoku Shinshutsu Kigyou Ichiran 2003-2004 (A View of Japanese Enterprises Investments in China 2003-2004) to study 1ocation choice of Japanese food industry investment in 231 Chinese cities from 1992 to 2001, paying a particular attention to agglomeration effects. A negative binominal model indicates that labor cost (WAGE) is the most important factor that deters Japanese food industry investment. Market size (GDP), raw material (MATER), port (PORT) and policy incentives (POLICY), however, have positive effects in Japanese food industry investment location choice in China. As for the three-tier agglomeration effects' test, the agglomeration effects of Japanese manufactures agglomeration (AG2) and Japanese food manufactures...
Tipo: Conference Paper or Presentation Palavras-chave: Food industry; Agglomeration; Japan; China; FDI; Agribusiness; International Relations/Trade; F21; Q13; Q18.
Ano: 2006 URL: http://purl.umn.edu/25307
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