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- Changing Property, Spatializing Difference: The Sea Scallop Fishery in New Bedford, Massachusetts
- While the historical character of US fisheries has been dominated by the idea of open access, the last several decades have seen sometimes quite radical changes to this basic way of thinking. Government regulation has increasingly taken the form of limited access to fisheries by various means. The Atlantic Sea...
- Research articles 2006-10-01
- REVIEW: Behavior and Daily Grazing Patterns of Cattle
- Abstract Grazing ruminants consume their food in discrete grazing events. The frequency and distribution of these events depend on the current physiological state of the animal and its environment. Within a small spatio-temporal scale, foraging decisions such as when to begin, which frequency, and how to distribute the grazing events...
- Research articles 2006-06-01
- Estimating size and composition of biological communities by modeling the occurrence of species.
- We develop a model that uses repeated observations of a biological community to estimate the number and composition of species in the community. Estimators of community-level attributes are constructed from model-based estimators of occurrence of individual species that incorporate imperfect detection of individuals. Data from the North American Breeding Bird...
- Research articles 2005-06-01
- Micro data, heterogeneity and the evaluation of public policy Part 2
- 7. TREATMENT EFFECTS The identification and estimation of structural econometric models are challenging tasks, especially for models with dynamics and uncertainty. The value of this research is beyond question. But the difficulty of this task is also clear. The task has been made harder by the empirical findings showing...
- Research articles 2005-03-22
- Convergence in the OECD: transitional dynamics or narrowing steady-state differences?
- I. INTRODUCTION Research on growth and convergence has proceeded through several stages that can be described as a process of accommodating cross-country heterogeneity into the convergence equation. In the first stage, the world could be described as countries approaching to equal absolute convergence or to different conditional convergence steady...
- Research articles 2004-01-01
- The trend-renewal process for statistical analysis of repairable systems.
- The most commonly used models for the failure process of a repairable system are nonhomogeneous Poisson processes, corresponding to minimal repairs, and renewal processes, corresponding to perfect repairs. This article introduces and studies a more general model for recurrent events, the trend-renewal process TRP. The TRP...
- Research articles 2003-02-01
- NIST standards for microanalysis and the certification process
- The National Institute of Standards and Technology NIST has been involved in the development of standards for microanalysis since the middle of the 1960s. Certification of "traceable" standards that can be sold to other laboratories is time-consuming and costly, especially when the extent of microheterogeneity within each specimen becomes part...
- Research articles 2002-11-01
- Nitrogen-land substitution in corn production: a reconciliation of aggregate and firm-level evidence
- The economic potential for altering crop yields in response to changes in relative prices has long been of interest to agricultural economists. An early motivation for assessing the substitution between land and nonland inputs derived from the need to evaluate the impact of policy and price changes on supply response...
- Research articles 1996-02-01
- Arelnet i-Tone Prime Gateway Successfully Completes Interoperability Testing; First Non-PC Based Carrier Grade Gateway Proves its Network Heterogeneity
- Business Editors & High-Tech Writers
- Research articles 2000-07-26
- The Dynamics Of Plant-Level Productivity In U.S. Manufacturing
- Nowadays work in I.O. has emphasized the importance of firm- and plant-level heterogeneity in total factor productivity. In this paper, we estimate establishment-level productivity for the entire U.S. manufacturing sector from 1976 until 1999 by using the Census Bureau's Longitudinal Research Database combined with the Bureau's Longitudinal Business Database. We...
- White papers 2006-09-05
- Internationalisation, Innovation And Productivity: How Do Firms Differ In Italy?
- This paper addresses the issue of intra-industry heterogeneity and internationalisation. Paper shows that, after controlling for sector, location, firm age and size, Italian manufacturing companies exhibit different economic and innovative performance according to their involvement in foreign activities. In particular, exporters show intermediate innovative performance between non-internationalised firms and those...
- White papers 2006-02-01
- Internationalization, Innovation And Productivity: How Do Firms Differ In Italy?
- This paper addresses the issue of intra-industry heterogeneity and internationalisation. Paper shows that, after controlling for sector, location, firm age and size, Italian manufacturing companies exhibit different economic and innovative performance according to their involvement in foreign activities. In particular, exporters show intermediate innovative performance between non-internationalised firms and those...
- White papers 2006-02-01
- Recognizing Reservoir Compartmentalization Increases Production
- The paper mentions that unanticipated reservoir heterogeneity may significantly hinder fluid production. A variety of techniques are available to help operators accurately describe reservoir compartments and their distributions. Integrated analysis considering results from varied techniques increases understanding of reservoir compartments, and ultimately raises production. It also adds that Reservoir heterogeneity...
- White papers 2002-02-01
- Heterogeneity in Asian American Homeownership: The Impact of Household Endowments and Immigrant Status
- This paper examines the heterogeneity that exists across Asian groups in the United States. It finds that there are important differences across geographic area, across time, and across groups in the importance of various factors that influence the likelihood of owning a home. After controlling for household mobility and other...
- White papers 2002-05-17
- Contractual Heterogeneity in Strategic Alliances
- This paper investigates firm's alliance design choices by examining alliances as multifaceted contractual forms. The analysis explores the contractual heterogeneity underlying alternative governance structures for alliances, the bundling of different contractual provisions, and the dimensionality of the contractual completeness construct. The empirical evidence indicates that the complexity of collaborative agreements...
- White papers 2003-02-14
- How Do Early Stage High Technology Investors Select Their Investments?
- This paper examines the selection behaviour of 68 European early stage high tech VCsventure capital. In particular, one examine whether or not these VCs exhibit heterogeneity in their selection behaviour. To examine these issues one employs a conjoint analysis methodology. The results indicate that VCs exhibit substantial heterogeneity in investment...
- White papers 2005-03-01
- Transportation Cost Heterogeneity And The Patterns Of Commodity Trade Flows
- Conventional approaches to modeling international commodity trade flows assume either perfect substitutability of goods from different countries, which results in unrealistically sharp predictions, or product differentiation by the country of origin, which is plausible for some goods, but is hard to justify for many fungible commodities. This paper introduces an...
- White papers 2005-04-07
- Firm Heterogeneity, Exporting And Foreign Direct Investment: A Survey
- A new and rapidly expanding literature on firm heterogeneity and firm level globalisation strategies has developed over the last decade. New insights on why some firms export and others do not, why some firms fail to survive in export markets, whilst others do and why some choose to produce overseas...
- White papers 2006-03-06
- Trade Liberalisation And Agglomeration With Firm Heterogeneity - Forward And Backward Linkages
- This paper studies the impact of trade costs reduction on geographical concentration in the presence of firm heterogeneity and overhead type of export fixed costs. Firm heterogeneity with the export fixed costs hampers full agglomeration through weakening the forward and backward linkages and fortifying the market crowding effect. Rather than...
- White papers 2006-04-01
- Measuring Productive Efficiency Incorporating Firms' Heterogeneity: An Empirical Analysis
- Heterogeneity among firms is quite prevalent in industries. Using the random coefficients model, this paper aims to measure productive efficiency of firms allowing heterogeneity of firms. Firm level data from the Bangladesh food manufacturing are used for empirical estimation. The results show that there are wide variations in efficiency across...
- White papers 2006-06-01
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