Technological differences and convergence in the OECD

2000 ◽  
Vol 2 (1) ◽  
pp. 11-27 ◽  
Author(s):  
Javier Andrés ◽  
José E. Boscá
Keyword(s):  
Technological Differences

A Multiregion Model with Capital Accumulation and Endogenous Amenities

2007 ◽  
Vol 39 (9) ◽  
pp. 2248-2270 ◽  
Author(s):  
Wei-Bin Zhang
Keyword(s):  
Capital Accumulation ◽  
Comparative Statics ◽  
The Other ◽  
High Rate ◽  
Unique Equilibrium ◽  
Economic Activities ◽  
Technological Differences ◽  
National Output ◽  
Simulation Results ◽  
Wage Disparities

The author develops a multiregional growth model with endogenous amenity and capital accumulation for any number of regions. The simulation results demonstrate that the national dynamics have a unique equilibrium. Comparative statics analysis shows that, if environmental improvement occurs in the technologically advanced (less advanced) region, the national output rises (falls). As a region improves its technology, the other two regions' aggregated output levels fall—not only in relative, but also in absolute, terms. This implies that if any region has a high rate of technological change and the other regions remain technologically stationary, then economic activities will tend to be concentrated in the technologically advancing region. It is also shown that technological differences appear to play only a small role in accounting for spatial wage disparities and endowments.

Clovis and Western Stemmed again: Reply to Fiedel and Morrow

2012 ◽  
Vol 77 (2) ◽  
pp. 386-397 ◽  
Author(s):  
Charlotte Beck ◽  
George T. Jones
Keyword(s):  
Pacific Coast ◽  
Supporting Evidence ◽  
Intermountain West ◽  
The South ◽  
Southern Plains ◽  
Technological Differences ◽  
The Pacific

AbstractFiedel and Morrow challenge our argument that Clovis technology originated in the southern Plains or Southeast and from there was carried by populations migrating north. Upon entering the Intermountain West relatively late, they encountered a population utilizing a different technology (Western Stemmed), the latter having arrived independently from the Pacific coast. Fiedel and Morrow offer arguments in favor of Clovis-first in the Intermountain West and coastal California and against the coastal route, Clovis origins in the south, and technological differences between Clovis and Western Stemmed. We evaluate these arguments and find their supporting evidence, when provided, meager and unconvincing.

scholarly journals Do FDI Firms Employ More Workers than Domestic Firms for Each Dollar of Assets?

2020 ◽  
Vol 20 (56) ◽  
Author(s):  
Sakai Ando ◽  
Mengxue Wang
Keyword(s):  
United Kingdom ◽  
Ownership Structure ◽  
Structure Information ◽  
Ownership Structures ◽  
Domestic Firms ◽  
Technological Differences ◽  
The United Kingdom ◽  
To Come

This paper studies whether FDI firms employ more workers than domestic firms for each dollar of assets. Using the Orbis database and its ownership structure information, we show that, in most economies, domestic firms tend to employ more workers per asset than FDI firms. The result remains robust across individual industries in the case study of the United Kingdom. The analysis of the switchers (ownership changes from domestic to foreign or vice versa) suggests that ownership changes do not have an immediate impact on the employment per asset. This result suggests that different patterns of employment per asset seem to come from technological differences rather than from different ownership structures.

Methodological Framework and Application Integration Services in Enterprise Information Systems

2009 ◽  
pp. 901-911 ◽  
Author(s):  
Darko Galinec ◽  
Slavko Vidovic
Keyword(s):  
Data Exchange ◽  
Business Processes ◽  
Methodological Framework ◽  
Business Systems ◽  
Enterprise Information ◽  
Application System ◽  
Technological Differences ◽  
Exchange Processes ◽  
Business Needs ◽  
New Applications

For integration of two business functions or two business systems it is necessary to connect their business processes with application support and data exchange. Processes appertaining to one application system create data which will be used by another application system. First, and the key reason for the integration of business systems’ applications, are user business needs for business processes and information flow, and changes in business processes occurring during business transactions. The next integration reason is related to the technological differences by means of which applications are constructed. Integration should be carried out to connect technologically different applications. Because of process complexity which includes breakdown of the existing business processes and applications, business processes change on the basis of business needs and user requirements, modeling of such processes, and new applications and their connection, it is necessary to shape methodological framework. The use of this framework should result in the successful completion of EAI projects.

Engine Design and Operational Impacts on Particulate Matter Precursor Emissions

2005 ◽  
Author(s):  
Stephen P. Lukachko ◽  
Ian A. Waitz ◽  
Richard C. Miake-Lye ◽  
Robert C. Brown
Keyword(s):  
Particulate Matter ◽  
Initial Conditions ◽  
Operating Mode ◽  
Radiative Properties ◽  
Aircraft Emissions ◽  
Commercial Aviation ◽  
Technological Differences ◽  
Engine Design ◽  
Temporal And Spatial ◽  
Operational Impacts

Aircraft emissions of trace sulfur and nitrogen oxides contribute to the generation of fine volatile particulate matter (PM). Resultant changes to ambient PM concentrations and radiative properties of the atmosphere may be important sources of aviation-related environmental impacts. This paper addresses engine design and operational impacts on aerosol precursor emissions of SOx and NOy species. Volatile PM formed from these species in the environment surrounding an aircraft is dependent on intra-engine oxidation processes occurring both within and downstream of the combustor. This study examines the complex response of trace chemistry to the temporal and spatial evolution of temperature and pressure along this entire intra-engine path, after combustion through the aft combustor, turbine, and exhaust nozzle. Low-order and higher fidelity tools are applied to model the interaction of chemical and fluid mechanical processes, identify important parameters, and assess uncertainties. The analysis suggests intra-engine processing is inefficient. For engine types in-service in the large commercial aviation fleet, mean conversion efficiency (ε) is estimated to be 2.8% to 6.5% for sulfate precursors and 0.3% to 5.7% for nitrate precursors at the engine exit plane. These ranges reflect technological differences within the fleet, the variation in oxidative activity with operating mode, and modeling uncertainty stemming from variance in rate parameters and initial conditions. Assuming sulfur-derived volatile PM is most likely, these results suggest emission indices of 0.06–0.13 g/kg-fuel assuming particles nucleated as 2H2SO4·H2O for a fuel sulfur content of 500 ppm.

scholarly journals Technological differences between açai and juçara pulps and their sorbets

2017 ◽  
Vol 21 (0) ◽  
Author(s):  
Ana Paula Silva Siqueira ◽  
Kyany Ferreira dos Santos ◽  
Thaís Alves Barbosa ◽  
Lucas de Alvarenga Santos Freire ◽  
Yorran Araújo Camêlo
Keyword(s):  
Antioxidant Activity ◽  
Ferrous Sulphate ◽  
Soluble Solids ◽  
Melting Time ◽  
Human Consumption ◽  
Palm Trees ◽  
Technological Differences ◽  
Points Of View ◽  
Processed Products

Abstract Açai and juçara are palm trees that produce similar fruits. However, only the sale of açai is growing on the market for pulps and processed products for human consumption. The aim of this study was to compare açai and juçara pulps from the chemical, bioactive, rheological and technological points of view. Sorbets were elaborated with the pulps and evaluations were carried out regarding the antioxidant activity, polyphenols, anthocyanins, pH, acidity, soluble solids, ratio and colour. The pulps were evaluated rheologically and the sorbets for melting time. Juçara showed better results regarding the bioactive parameters (antioxidants ≈ 151 uM ferrous sulphate/ g and anthocyanins ≈ 77 mg.100g-1) and presented a more intense colour (Chroma 17). The pulps were physicochemically similar. The sorbet preserved much of the nutrients and presented a very intense colour, mainly in the juçara sorbet.

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