Coordenação na cadeia produtiva de ovinocultura : o caso do Conselho Regulador Herval Premium

O presente estudo foi desenvolvido a fim de identificar iniciativas de coordenação na cadeia de ovinocultura. Após um período de desvalorização da ovinocultura, a cadeia produtiva encontra-se em um novo cenário frente as oportunidades de mercado para carne ovina e ao potencial produtivo da ovinocultura no estado do Rio Grande do Sul. Diante deste novo cenário, produtores rurais da região da Serra do Sudeste buscaram uma forma de atuação diferenciada na cadeia vislumbrando obter resultados econômicos mais satisfatórios a partir da produção, através da agregação de valor aos produtos e integração dos agentes, aumentando a competitividade da cadeia de ovinocultura. Esta proposta de atuação originou o Conselho Regulador do Cordeiro Herval Premium. Objetivo geral do estudo é analisar a forma de atuação da iniciativa de coordenação do Conselho Regulador do Cordeiro Herval Premium na cadeia de ovinocultura do Rio Grande do Sul. Para atingir este objetivo no referencial teórico foram utilizadas as teorias de cadeia produtiva, cadeia de suprimentos, canais de distribuição, coordenação e alianças estratégicas. Como método de pesquisa foi utilizado o estudo de caso do Conselho Regulador do Cordeiro Herval Premium. A análise dos dados primários coletados a partir das entrevistas com os agentes participantes e dos dados secundários referentes a atuação da iniciativa de coordenação, permitiu a descrição do caso e obtenção dos resultados da pesquisa. Quais sejam: o Conselho Regulador do Cordeiro Herval Premium atua na cadeia da carne ovina como uma organização associativa de produtores com objetivo de coordenar a oferta de cordeiros oriundos de distintos estabelecimentos na região da Serra do Sudeste, através de um programa de seleção que garante padrão de qualidade e origem dos produtos, agregando valor a carne ovina. A coordenação na cadeia produtiva é exercida via aliança estratégica formada entre o Conselho e dois distribuidores. O Conselho coordena a cadeia de suprimentos de carne ovina, na medida que organiza o abate de cordeiros e fornece o produto de acordo com as exigências dos consumidores para atender a demanda do mercado. Por sua vez a aliança do Conselho com os distribuidores garante a estabilidade de um canal de distribuição constante para o escoamento da produção dos participantes do programa, o que lhes permite segurança de remuneração e fluxo de renda ao longo do ano.

Essays on illiquidity premium

This dissertation is composed of three related essays on the relationship between illiquidity and returns. Chapter 1 describes the time-series properties of the relationship between market illiquidity and market return using both yearly and monthly datasets. We find that stationarized versions of the illiquidity measure have a positive, significant, and puzzling high premium. In Chapter 2, we estimate the response of illiquidity to a shock to returns, assuming that causality runs from returns to illiquidity and find that an increase in firms' returns lowers illiquidity. In Chapter 3 we take both effects into account and account for the endogeneity of returns and illiquidity to estimate the liquidity premium. We find evidence that the illiquidity premium is a smaller than the previous evidence suggests. Finally, Chapter 4 shows topics for future research where we describe a return decomposition with illiquidity costs.

An empirical comparison of forward-rate and spot-rate models for valuing interest-rate options

Our main goal is to investigate the question of which interest-rate options valuation models are better suited to support the management of interest-rate risk. We use the German market to test seven spot-rate and forward-rate models with one and two factors for interest-rate warrants for the period from 1990 to 1993. We identify a one-factor forward-rate model and two spot-rate models with two faetors that are not significant1y outperformed by any of the other four models. Further rankings are possible if additional cri teria are applied.

Is there a price puzzle in Brazil? an application of bias- corrected bootstrap

Using data from the United States, Japan, Germany , United Kingdom and France, Sims (1992) found that positive innovations to shortterm interest rates led to sharp, persistent increases in the price leveI. The result was confirmed by other authors and, as a consequence of its non-expectable nature, was given the name "price puzzle" by Eichenbaum (1992). In this paper I investigate the existence of a price puzzle in Brazil using the same type of estimation and benchmark identification scheme employed by Christiano et aI. (2000). In a methodological improvement over these studies, I qualify the results with the construction of bias-corrected bootstrap confidence intervals. Even though the data does show the existence of a statistically significant price puzzle in Brazil, it lasts for .only one quarter and is quantitatively immaterial.

The firm size wage premium : a quantile analysis

Empirical evidence shows that larger firms pay higher wages than smaller ones. This wage premium is called the firm size wage effect. The firm size effect on wages may be attributed to many factors, as differentials on productivity, efficiency wage, to prevent union formation, or rent sharing. The present study uses quantile regression to investigate the finn size wage effect. By offering insight into who benefits from the wage premi um, quantile regression helps eliminate and refine possible explanations. Estimated results are consistent with the hypothesis that the higher wages paid by large firms can be explained by the difference in monitoring costs that large firms face. Results also suggest that more highly skilled workers are more often found at larger firms .

Mobility, information, and bequest : the other side of the equal division puzzle

There is substantial empirical evidence that parental bequests to their children are typically equal in the US – a regularity inconsistent with the predictions of standard optimizing bequest models. The prior explanation for this puzzle is parents’ desire to signal equal affection given children’s incomplete information of parental preferences. However, parents also have incomplete information regarding children and the implications of this side of the information set have not previously been considered. Using a strategic bequest framework we show that when parents have sufficient uncertainty regarding children’s returns to relocation a separating equilibrium in which parents reward attentive heirs with larger bequests is precluded. We argue that such uncertainty is consistent with conditions in the contemporary US.

Using a panel structure to discuss the Feldstein-Horioka puzzle in developing countries

The purpose of this paper is to test the implications of current account solvency for the savinginvestment correlation in developing countries. Since solvency is a long-run phenomenon, and given that the power of the standard unit root and cointegration tests is low, we exploit the panel structure of the sample of 29 developing countries. We find evidence that saving and investment are cointegrated and that the current account is stationary. Therefore, the Feldstein-Horioka correlations are not a puzzle in the sense they reflect the intertemporal budget constraint. The same results are obtained for different subsamples (Africa, Asia, and Latin America) and for different periods of time (1960-74 and 1975-96). We, then, suggest that an error correction model should distinguish between the long-run correlation, which reflects the solvency condition, and the short-run correlation, which could measure capital mobility.

The Brazilian class C women perception regarding premium mass products in the beauty industry

Recentemente, os mercados emergentes se tornaram um alvo potencial para a indústria da beleza e o Brasil está se tornando um mercado lucrativo para os produtos cosméticos Premium (Euromonitor International, 2013). A população de baixa renda no Brasil representa 70% de seus habitantes ao considerar as classes C, D e E (Barki e Parente, 2010), sendo a classe C representada por 56% da população (Neri, 2012). Este é um mercado potencial para as empresas multinacionais (MNCs), que enfrentam desafios de fazer negócios no país, visto que a classe C opta por gastar parte de sua renda com produtos relacionados a beleza (Silva e Parente, 2007) e ainda há um pouco conhecimento sobre o comportamento de consumo na base da pirâmide. Portanto, o objetivo deste estudo é investigar e descrever o comportamento de consumo das mulheres brasileiras da classe C no setor de beleza, em relação aos produtos Mass Premium, melhorando o conhecimento no que diz respeito a essa população e ao tema proposto. Para atingir esse objetivo, o autor utilizou uma metodologia baseada em uma análise descritivas qualitativa em que foram entrevistadas 20 mulheres de todas as faixas etárias, que pertencem à classe C brasileira e citações foram usadas para fornecer a confirmação dos resultados da análise. Os resultados sugerem que, ao longo dos anos, houve de fato um movimento de trade up no consumo de produtos de beleza. Além disso, foram identificados cinco aspectos principais, que conduzem decisão de compra das mulheres de classe C, no setor de beleza: confiabilidade, qualidade, status, autoestima e bem-estar. Apesar das limitações de um estudo exploratório, espera-se que a pesquisa aumente o conhecimento sobre o mercado da base da pirâmide, especialmente no que diz respeito à indústria da beleza.

A systematic component of the jump-risk premium in an AJD model

We develop an affine jump diffusion (AJD) model with the jump-risk premium being determined by both idiosyncratic and systematic sources of risk. While we maintain the classical affine setting of the model, we add a finite set of new state variables that affect the paths of the primitive, under both the actual and the risk-neutral measure, by being related to the primitive's jump process. Those new variables are assumed to be commom to all the primitives. We present simulations to ensure that the model generates the volatility smile and compute the "discounted conditional characteristic function'' transform that permits the pricing of a wide range of derivatives.

Ecommerce as internationalization strategy: an exploratory study based on premium fashion brazilian brands: case study of farfetch

As stated by Hoffmann and Coste-Manière (2012) “The web is a mass medium that contrast completely with the traditional codes of exclusivity associated with the luxury industry, and has long been simply rejected by the luxury industry for being an illegitimate distribution channel.” Meanwhile this market presents an incomparable pace of growth and is gradually changing the existing retailing business model and companies must be aware of this change and capable to adapt to it. The internet and cross-border sales already changed the competition throughout retailing and it will increase even more, so companies must be ready to face it. Internet has shown its great opportunity for all markets, although luxury/premium market is not yet taking the proper advantage of its potential, but the necessity to be an omnichannel business strategy is growing. This paper presents an exploratory research based on a case study of how premium fashion Brazilian brands are using Farfetch, e-commerce, as an entry market strategy and how this affects them. The research question of this study is: How is Farfetch helping on the internationalization of Brazilian premium fashion brands?, and in order to answer it was conducted an in-depth interview with the Brazilian head of business development of Farfetch, apart an extensive secondary data research. As expected the study found a list of trade-offs of using an e-commerce, luxury specialized, with a marketplace approach to the brands willing to internationalize. As stated by Altagamma and McKinsey (2015) study “[...] luxury brands have no choice but to embrace the digital era and become truly omnichannel. This will require them a radical rethinking of both their customer experience of their consumer engagement strategy.” Looking either from the Farfetch point of view, trying to understand why they offer this opportunity to the brands, or also from the brand side if this is a manageable approach. This study presents a contribution for both sides, trying to give tools to the brands on understanding the internationalization reasons and approach, as well as explaining Farfetch business model, and the advantages it can bring to them, at the same time of a general market trend analysis for Farfecth.

Puzzle Pirata

Ilustração componente do jogo “Musikinésia (http://www.loa.sead.ufscar.br/musikinesia.php)” desenvolvido pela equipe do Laboratório de Objetos de Aprendizagem da Universidade Federal de São Carlos (LOA/UFSCar).

Fast-forward/fast-backward substitutions on vector computers

This paper deals with approaches for sparse matrix substitutions using vector processing. Many publications have used the W-matrix method to solve the forward/backward substitutions on vector computer. Recently a different approach has been presented using dependency-based substitution algorithm (DBSA). In this paper the focus is on new algorithms able to explore the sparsity of the vectors. The efficiency is tested using linear systems from power systems with 118, 320, 725 and 1729 buses. The tests were performed on a CRAY Y MP2E/232. The speedups for a fast-forward/fast-backward using a 1729-bus system are near 19 and 14 for real and complex arithmetic operations, respectively. When forward/backward is employed the speedups are about 8 and 6 to perform the same simulations.

Conservation puzzle: Endangered hyacinth macaw depends on its nest predator for reproduction

In the Pantanal wetlands of Central Brazil, the endangered hyacinth macaw (Anodorhynchus hyacinthinus), the largest psitacid in the world, makes its nest almost exclusively in natural hollows found in the manduvi tree (Sterculia apetala). The recruitment of manduvis greatly depends on the seed dispersal services provided by the toco toucan (Ramphastos toco), responsible for 83.3% of the seed dispersal. The toco toucan, however, is responsible for about 53% of the preyed eggs, resulting in a case of conflicting ecological pressures in which the reproduction of the hyacinth macaw is indirectly dependent on the seed dispersal services of its nest predator. The case illustrates the intricacies of biotic interactions in species-rich environments where species may be tied by indirect, subtle ecological links which conservationists should be aware of. (c) 2008 Elsevier Ltd. All rights reserved.

gamma p and gamma gamma scattering from (p)over-bar-p, pp forward amplitudes in a QCD eikonal model with a dynamical gluon mass

We examine the gamma p photoproduction and the hadronic gamma gamma total cross sections by means of a QCD eikonal model with a dynamical infrared mass scale. In this model, where the dynamical gluon mass is the natural regulator for the tree level gluon-gluon scattering, the gamma p and gamma gamma total cross sections are derived from the pp and (p) over barp forward scattering amplitudes assuming vector meson dominance and the additive quark model. We show that the validity of the cross section factorization relation sigma(pp)/sigma(gamma p)=sigma(gamma p)/sigma(gamma gamma) is fulfilled depending on the Monte Carlo model used to unfold the hadronic gamma gamma cross section data, and we discuss in detail the case of sigma(gamma gamma -> hadrons) data with W-gamma gamma> 10 GeV unfolded by the Monte Carlo generators PYTHIA and PHOJET. The data seems to favor a mild dependence with the energy of the probability (P-had) that the photon interacts as a hadron.

Measurement of the forward-backward charge asymmetry in top-quark pair production

We present the first measurement of the integrated forward-backward charge asymmetry in top-quark-top-antiquark pair (t (t) over bar) production in proton-antiproton (p (p) over bar) collisions in the lepton+jets final state. Using a b-jet tagging algorithm and kinematic reconstruction assuming t (t) over bar +X production and decay, a sample of 0.9 fb(-1) of data, collected by the D0 experiment at the Fermilab Tevatron Collider, is used to measure the asymmetry for different jet multiplicities. The result is also used to set upper limits on t (t) over bar +X production via a Z' resonance.