Using panel data of individual firms drawn from French surveys, a structural analysis is developed to study the formation of production plans and the rationality of expectations. The production decision of a firm is defined as the optimal solution of a dynamic stochastic optimization problem. The empirical work amounts to recovering the structural parameters characterizing the model of the firm from estimates of the derived decision rule. The preceding analysis of production plans is based on the assumption that firms are rational. To justify this assumption, direct tests offer evidence that the Rational Expectations Hypothesis may not be rejected for quantity variables.
The book, in its second edition, is devoted to the neurosurgical management of spasticity and focal dystonia. Starting with a chapter on the anatomical and physiological bases of spasticity and a short history of its neurosurgical treatment, it describes the neurosurgical methods currently available. As management differs between adults and children, the book is also structured accordingly, including evaluation, decision-making, Intrathecal Baclofen therapy (ITB), Botulinum toxin therapy and Surgery. The large spectrum of scales for assessing hypertonia, spasticity, dystonia, contracture and joint/bone deformities, as well as the scoring systems for quantifying functional abilities are critically reviewed. Beyond ITB, the neurosurgical options covered include the microsurgical procedures focusing on the peripheral nerves, dorsal roots, Dorsal Root Entry Zone and spinal cord, and their intra-operative monitoring. In this second edition, the orthopedic surgical interventions available will take a large place, either as alternative solutions , or even better as important complements after spasticity be solved by the neurosurgical treatments. Based on surgical experience collected with more than a thousand and eight-hundred patients, the book gathers the most important aspects of our present understanding, presented using a practical, educational approach. It stresses the importance of a multidisciplinary approach, including neurologists, pediatricians and rehabilitation specialists. Close collaborations with other surgical disciplines like orthopedic surgery and neuro-urology are outlined.
This document builds on two reports commissioned by the European Commission on the economic analysis of horizontal mergers, dealing respectively with unilateral effects and tacit collusion. The document comprises four parts: Part A provides a general introduction and overview of the main issues. Part B focuses on the economics of unilateral effects, while Part C studies coordinated effects through the economics of tacit collusion. Part D reviews a number of quantitative procedures that can be used for the analysis of unilateral effects and tacit collusion.
Using panel data of individual firms drawn from French surveys, a structural analysis is developed to study the formation of production plans and the rationality of expectations. The production decision of a firm is defined as the optimal solution of a dynamic stochastic optimization problem. The empirical work amounts to recovering the structural parameters characterizing the model of the firm from estimates of the derived decision rule. The preceding analysis of production plans is based on the assumption that firms are rational. To justify this assumption, direct tests offer evidence that the Rational Expectations Hypothesis may not be rejected for quantity variables.
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