640 research outputs found
The determinants of intrafirm trade: Evidence from French firms
How well does the theory of the firm explain the choice between intrafirm and arms' length trade? This paper uses firm-level import data from France to look into this question. We find support for three key predictions of property-rights theories of the multinational firm. Intrafirm imports are more likely: (i) in capital- and skill-intensive firms; (ii) in highly productive firms; (iii) from countries with well-functioning judicial institutions. We further bridge previous aggregate findings with our investigation by decomposing intrafirm imports into an extensive and intensive margin. Doing so we uncover interesting patterns in the data that require further theoretical investigation.intrafirm trade; outsourcing; firm heterogeneity; incomplete contracts; internationalization strategies; quality of institutions, extensive margin, intensive margin.
Trade and skill-upgrading. Firm-level evidence for Belgium.
We use Belgian firm level data over the period 1996-2007 to analyze the impact of imports from China and other low wage countries on firm growth, exit, and skill upgrading. We distinguish the impact of imports into two different channels: industry-level import competition and firm-level outsourcing. We find that imports from China are much more important than imports from other low-wage countries. Industry-level import competition from China reduced firm employment and induced skill upgrading. Import competition from China alone can explain around 30 percent of the total skill upgrading in Belgian manufacturing during 1996-2007. Our IV results confirm the ambiguous role of outsourcing in firm employment growth, but we also find that outsourcing to China will increase the relative employment of non-production workers and is beneficial for firm survival.import competition; outsourcing; China; skill upgrading;
Practical wisdom for management from the Christian tradition. Metaprofit managerial style and the role of gratuitousness for the development of practical wisdom
The paper is aimed to highlight the relation between Christian tradition \u2013 and, in particular, Catholic Social Thought \u2013 and management.
In particular, the paper describes the origin of a \u201cmetaprofit\u201d managerial style and his principal characteristics. From among these, the most important is gratuitousness, considered a useful element helping practical wisdom to develop into managerial praxis
XAFS Debye-Waller factors for deformed hemes and metal substituted hemes
We present an efficient and accurate method for calculating XAFS Debye-Waller factors for deformed active sites of hemoproteins and metal substituted hemes. Based on the Normal Coordinate Structural Decomposition scheme, the deformation of the porphyrin macrocycle is expressed as a linear combination of the normal modes of the planar species. In our approach, we identify the modes that contribute most to the deformation. Small metal-porphyrin structures which match the macrocycle structural deformation of the deformed hemoprotein site are used to calculate the Debye-Waller parameters at sample\u27s temperature. The Debye-Waller factors are directly obtained by calculating the normal mode spectrum of the corresponding metal-porphyrin structure using Density Functional Theory. Our method is tested on Ni-tetraadamantyl porphyrin and cytochrome c structures with more than 500 available scattering paths. © 2009 IOP Publishing Ltd
An Approach to the Simulation of a Batch-respirometer
Dynamic models in activated sludge processes have demonstrated to be a reliable and useful instrument in design and management of wastewater treatment plants. The biochemical nature of the processes involved the models which need a specific calibration
to local conditions. A common method to determine kinetic and stoichiometric parameters of the biomass or wastewater/sludge fractionations is respirometry. Theoretically, nearly all biomass parameters and fractions can be estimated by respirometry, but a
lot of difficulties rise when some parameters, such as saturation and hydrolysis rate constants, have to be drawn from experimental data.
The aim of our work is the setting up of a simple method to calibrate Activated Sludge Model No. 1 applying traditional batch respirometric tests together with dynamic simulations of the respirometer itself
Blood Pressure Measurements Taken by Patients are Similar to Home and Ambulatory Blood Pressure Measurements
OBJECTIVE: To compare blood pressure measurements taken at home by physicians, nurses, and patients with office blood pressure measurement , ambulatory blood pressure monitoring and home blood pressure measurement. METHODS: A total of 44 patients seen by a home care program were studied. Protocol 1 a) blood pressure was measured by the patient, a physician and a nurse during a regular home visit (Home1); b) home blood pressure measurement was measured for 4 days (HBPM1); c) office blood pressure measurement was measured by a physician, a nurse, and the patient; and by 24-hour ambulatory blood pressure monitoring. Protocol 2 blood pressure was measured by the patient, a physician, and a nurse during a special home visit in the presence of a physician and a nurse only (Home2); and b) home blood pressure measurement was taken for the second time (HBPM2). Echocardiography, guided by a two-dimensional echocardiograph, was performed. RESULTS: Protocol 1: a) office blood pressure measurement and Home1 were significantly higher than ambulatory blood pressure monitoring, except for systolic and diastolic office blood pressure measurement taken by the patient or a family member, systolic blood pressure taken by a nurse, and diastolic blood pressure taken by a physician. b) ambulatory blood pressure monitoring and HBPM1 were similar. Protocol 2: a) HBPM2 and Home2 were similar. b) Home2 was significantly lower than Home1, except for diastolic blood pressure taken by a nurse or the patient. There were significant relationships between: a) diastolic blood pressure measured by the patient and the thickness of the interventricular septum, posterior wall, and left ventricular mass; and b) ambulatory and HBPM2 diastolic and systolic blood pressure taken by a physician (home2) and left ventricular mass. Therefore, the data indicate that home blood pressure measurement and ambulatory blood pressure monitoring had good prognostic values relative to "office measurement." CONCLUSION: This study showed that the measurement most similar to home blood pressure measurement and ambulatory blood pressure monitoring was blood pressure measured by the patient, and that home blood pressure measurement and ambulatory blood pressure monitoring had good prognostic value relative to "office measurements"
Valutazione della qualità e dello stato di conservazione degli ambienti litoranei: l'esempio del pS.I.C. "Penisola del Cavallino: biotopi litoranei" (Venezia, NE-Italia)
Evaluation of quality and conservation status in coastal landscapes: the example of the Site of Community Importance “Penisola del Cavallino:
biotopi litoranei”(Venice, NE Italy). Quality of coastal landscape has been estimated at two different scale: at the community level, we assessed a
naturalistic value, by evaluating characteristics coming both from species (i.e. presence of endemic species) and from community itself (i.e. rarity).
We also took into account the percentage of exotic and ruderal species on the total number of species of each community, as an indirect measure of
alteration degree.
At the landscape level, we tried to value structural and functional integrity by evaluating spatial connectivity and contrast among patches. As the plant communities of foredunes show a typical spatial zonation, the two indices have been calculated along 27 transects perpendicular to the seashore.
On the basis of a digital map of the area, we measured the gamma connectivity index along each transect; we assessed both “total connectivity”, considering all the communities intersected by the transects, and “partial connectivity”, considering only the plant communitie s of foredunes, so
describing spatial distribution model of coastal vegetation. Since on the backdune there is not a typical zonation of communiti es, we counted only the links between natural communities, considering anthropogenic communities as a break of natural landscape and of connectivity. I n addition, we measured the contrast index; this index evaluates the change in environmental conditions going from one community (or patch) to the neighbouring one. The different patches are included and surrounded by a matrix, consisting of “nonhabitat” at different degree of alteratio n, that may function as an impenetrable barrier for individuals or, on the contrary, may favour movements. Thus, the surrounding matrix may significant ly influence the effective isolation of habitat patches, rendering them more or less isolated than simple distance would indicate. For the contr ast computation, we utilized the naturalistic value assessed to each community on the basis of the phytosociological data. Both indices point to the extreme fragmentation of coastal landscape and to high vulnerability that characterizes all natural communities being they surrounded by a matrix hig hly contrasting.
Conservation strategies should, then, concern natural habitat, their quality and their structural and functional integrity, but they should also consider the quality of surrounding matrix
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