1,137 research outputs found

    The Personalist Foundations of the Ethics of Reproduction

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    Measuring the economic significance of structural exchange rate models

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    This paper examines both the in-sample and out-of-sample performance of three monetary fundamental models of exchange rates and compares their out-of-sample performance to that of a simple Random Walk model. Using a data-set consisting of five currencies at monthly frequency over the period January 1980 to December 2009 and a battery of newly developed performance measures, the paper shows that monetary models do better (in-sample and out-of- sample forecasting) than a simple Random Walk model.monetary models, forecasting

    Relation between higher order comoments and dependence structure of equity portfolio

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    We study a relation between higher order comoments and dependence structure of equity portfolio in the US and UK by relying on a simple portfolio approach where equity portfolios are sorted on the higher order comoments. We find that beta and coskewness are positively related with a copula correlation, whereas cokurtosis is negatively related with it. We also find that beta positively associates with an asymmetric tail dependence whilst coskewness negatively associates with it. Furthermore, two extreme equity portfolios sorted on the higher order comoments are closely correlated and their dependence structure is strongly time varying and nonlinear. Backtesting results of value-at-risk and expected shortfall demonstrate the importance of dynamic modeling of asymmetric tail dependence in the risk management of extreme events

    The Quadmill: effects of eccentric training vs. concentric training on lower extremity power and anaerobic capacity.

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    Training focuses on the concentric action of muscle during exercise for most exercise programs, but eccentric training may yield greater results. The QuadmillTM is a unique piece of training equipment that focuses on training the quadriceps muscle eccentrically. Purpose: to determine if using the QuadmillTM could increase power and anaerobic capacity to the same level, if not greater, than a standard concentric focused lower body training protocol. Participants were 44 undergraduate college students (24 Male 20 Female) Design: participants placed into three equal groups (QuadmillTM, Lifting, Control). The two experimental groups (QuadmillTM and Lifting) underwent seven weeks of a training intervention based on group. Pre- and post-tests of power (vertical jump height and approach jump height) and anaerobic capacity (shuttle run) were used to measure performance. The QuadmillTM group was statistically significant from both of the other groups in terms of power after the seven weeks Conclusion: eccentric training with the QuadmillTM can yield greater power development than concentric training with a standard resistance training program

    The effect of injury in imitation of hail damage on the development of corn

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    The Twofold Source of the Dignity of Persons

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    Systematic Breeding Decisions Made Within A Vertically Integrated Beef Supply Chain

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    This paper investigates how to use a vertically integrated supply-chain model to aid in the selection of beef sires when making breeding decisions. A systematic approach was taken to model and determine the benefits and associated sire rankings arising from the simulated mating of parent stock to create progeny for use within a vertically integrated supply chain. Supply chain-wide gross margins serve as the benefit measure. Supply chain revenues are in the form of quality indexed retail product revenue. Quality indexing (i.e. discounting) factors included intramuscular fat and longissimus muscle (i.e. ribeye) area. A fixed and an optimum endpoint (i.e. harvest) selection method are compared. Varying progeny gross margins and sire rankings were produced. The various levels of gross margin were significantly different from zero, and provide a clear means by which to incorporate economic variables into selection of beef sires. No current method of selecting parental stock returns similar results.value-chain management, beef-cattle breeding, Industrial Organization, Livestock Production/Industries,
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