Limpar
157 resultados

Acesso aberto

Tipo do recurso

Ano de criação

Produção nacional

Revisado por pares

Áreas

Idioma

Editores

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Rafael de Lima Lázaro, Antônio Carlos Torres da Costa, Keoma de Freitas da Silva, Marcos Vinícius Mansano Sarto, José Barbosa Duarte Júnior,

A utilização de espécies antecessoras ao milho, capazes de fornecer nitrogênio pela fixação simbiótica ou reciclagem de nutrientes, é importante para a manutenção da produtividade. Este trabalho objetivou avaliar a produtividade do milho cultivado em sucessão à adubação verde. O delineamento experimental utilizado foi o de blocos casualizados, com quatro repetições e os seguintes tratamentos: milho cultivado sobre a palhada de aveia preta, aveia preta + nabo forrageiro, aveia preta + tremoço branco, ...

Tópico(s): Rural Development and Agriculture

2013 - UNIVERSIDADE FEDERAL DE GOIÁS | Pesquisa Agropecuária Tropical

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

José Sarto Freire Castelo, José Ednilson de Oliveira Cabral,

Purpose -The general objective of this paper is to evaluate the determinant attributes of the perception of clothing quality by the users of a social network and to verify if there are any differences of evaluation of these determinants between genders.Design/methodology/approach -To achieve the objective, a survey was conducted with a sample of 295 consumers.All participants, regardless of gender, were asked to access the SurveyMonkey site link and to answer the questions regarding the quality of ...

Tópico(s): Consumer Packaging Perceptions and Trends

2017 - Álvares Penteado School of Commerce Foundation | Review of Business Management

Artigo Acesso aberto Brasil Produção Nacional

Caroline Daiane Nath, Marcela Abbado Neres, Kácia Carine Scheidt, Luciano dos Santos Bersot, Samantha Mariana Monteiro Sunahara, Jaqueline Rocha Wobeto Sarto, José Renato Stangarlin, Simone Damasceno Gomes, Mallú Jagnow Sereno, Ana Paula Perin,

Objective The objective was to characterize the fermentative and microbiological profile of Tifton 85 bermudagrass haylage with different layers of polyethylene film and storage time. Methods The experimental design consisted of a randomized block design with four and six wrapping layers (100 and 150 microns in total. respectively) allocated in the main plots, through repeated measures analysis (30, 60, and 90 days of storage) with four replicates. Results The storage time and number of wrapping layers ...

Tópico(s): Ruminant Nutrition and Digestive Physiology

2018 - Asian-Australasian Association of Animal Production Societies | Asian-Australasian Journal of Animal Sciences

Artigo Acesso aberto Revisado por pares

Pablo Vilas, Laura Andreu, José Luis Sarto,

Sustainability stock indices play an important role in guiding socially responsible funds to their constituents. Thus, to find out whether the term sustainability is more than just a label, we analyze the inclusion and exclusion criteria applied by sustainability indices, and we compare them with those applied by conventional indices. We analyze the level of sustainability and size of the companies included in and excluded from five sustainability indices compared to a control group of 11 conventional ...

Tópico(s): Environmental Sustainability in Business

2021 - Elsevier BV | Journal of Cleaner Production

Artigo Revisado por pares

Laura Andreu, Cristina Ortiz, José Luis Sarto,

This paper evaluates the presence of disposition effect in Spanish equity funds and its implications for investors. We find that disposition spread is not a widespread bias, but it exists across funds. This effect is especially intense during the crisis period, but it is mitigated in large management companies or in those that belong to bank holding groups. For a new insight when disentangling managers’ decisions, this study shows that the disposition effect is not only a cognitive bias inherent ...

Tópico(s): Corporate Finance and Governance

2020 - Elsevier BV | Journal of Economic Behavior & Organization

Artigo Acesso aberto Revisado por pares

Laura Andreu, Juan Carlos Matallín‐Sáez, José Luis Sarto,

We propose a novel performance attribution model for equity fund portfolios. The model analyses investment decisions based on portfolio holdings and measures the value added from different sources of performance such as past return strategies, security selection, market timing and passive timing. The model was tested for a sample of mutual funds. Empirical results show that security selection is the main contributor to fund performance regardless of the sample period considered or the asset pricing ...

Tópico(s): Corporate Finance and Governance

2018 - Elsevier BV | International Review of Economics & Finance

Artigo Revisado por pares

Carlos Sánchez-González, José Luis Sarto, Luís Vicente,

This paper is the first DEA (Data Envelopment Analysis) evaluation of the efficiency of a sample of mutual fund companies in a large Euro fund industry, i.e. Spain. Our novel network model links the efficiency of the core activities (portfolio management and marketing/distribution) of a mutual fund company to the efficiency of its operational management function. Our results highlight the important networking effects at the marketing stage and question the prime role of portfolio management skills ...

Tópico(s): Business Strategy and Innovation

2016 - Elsevier BV | Omega

Artigo Revisado por pares

Laura Andreu, José Luis Sarto,

This study examines the impact of mutual fund mergers on performance and investment flows of target and acquiring funds. Results indicate some improvements in the post-merger performance for target funds shareholders. Results also confirm prior evidence of negative net asset flows in target funds in the pre-merger period as well as negative, but not significant, net asset flows in the years following the merger. However, a more detailed analysis allows us to observe that this lack of significance ...

Tópico(s): Housing Market and Economics

2013 - Taylor & Francis | European Journal of Finance

Artigo Revisado por pares

Cristina Ortiz, José Luis Sarto, Luís Vicente,

This paper builds on the limited body of research on window dressing by bond mutual funds. Our monthly bias-free sample allows us to undertake a more comprehensive study than is possible with the quarterly data traditionally employed in otherwise similar studies. We test window dressing in a straightforward manner using monthly undisclosed portfolios, which makes it possible to compare changes in public debt allocations around quarterly disclosures. Our results support the hypothesis that window ...

Tópico(s): Corporate Finance and Governance

2011 - Elsevier BV | Journal of Banking & Finance

Artigo Revisado por pares

Nonito Pagès, Francesc Muñoz‐Muñoz, Salvador Talavera, V. Sarto, Cristina Lorca, José I. Núñez,

Culicoides biting midges (Diptera: Ceratopogonidae) are vectors of important diseases affecting wild and domestic animals. During the last decade they have played a major role in the epidemiology of the largest bluetongue epizootic ever recorded in Europe, the disease is transmitted between hosts almost exclusively by bites of Culicoides midges and affects both domestic and wild ruminants however severe disease usually occurs in certain breeds of sheep and some species of deer. An accurate vector ...

Tópico(s): Viral Infections and Vectors

2009 - Elsevier BV | Veterinary Parasitology

Artigo Revisado por pares

Laura Andreu, Cristina Ortiz, José Luis Sarto,

In this article, we contribute to financial literature on institutional herding behaviour, intertemporal imitation and informational cascades by analysing the changes in the strategic asset allocations of Spanish equity pension plans investing in Eurozone equities. This article is mainly focused on methodological improvements. Firstly, the study examines the herding phenomenon by using the traditional measure developed by Lakonishok, Shleifer and Vishny (LSV) (1992). Afterwards, some original analyses ...

Tópico(s): Financial Markets and Investment Strategies

2009 - Chapman and Hall London | Applied Financial Economics

Artigo Revisado por pares

Luis Ferruz Agudo, José Luis Sarto, Luís Vicente,

We analyse the herding phenomenon in the management style of Spanish equity funds. Using the methodology of Lakonishok et al. (1992) Lakonishok, J., Shleifer, A. and Vishny, R. 1992. The impact of institutional trading on stock prices. Journal of Financial Economics, 32: 23–43. [Crossref], [Web of Science ®] , [Google Scholar] and Sharpe's style analysis (1992) Sharpe, W. F. 1992. Asset allocation: management style and performance measurement. Journal of Portfolio Management, 18: 7–19. [Crossref], [Web of Science ®] , [ ...

Tópico(s): Capital Investment and Risk Analysis

2008 - Taylor & Francis | Applied Economics Letters

Artigo Revisado por pares

Luis Ferruz Agudo, José Luís Sarto Marzal,

This paper concentrates on the financial analysis of investment performance taking Sharpe's ratio as a basic point of reference, as well as giving further consideration to the use of this performance measure as an approximation to a utility index. We also propose certain changes to Sharpe's ratio which would, on the one hand, avoid the appearance of inconsistent assessments and, on the other, provide an approach to the use of Sharpe's performance measure as a utility index. All of the measures involved ...

Tópico(s): Housing Market and Economics

2004 - Elsevier BV | Omega

Artigo Acesso aberto Brasil Produção Nacional

José Sarto Freire Castelo, José António Sarsfield Cabral, Arnaldo Coelho,

This paper evaluates the relationship between the marketing mix elements and the creation of brand equity based on a conceptual framework defined from the state of the art marketing literature. The study is based on individual perceptions of 603 buyers who had the experience in the context of an assisted “top of mind” of six brands of food processors versus the private label of a supermarket in the city of Fortaleza - Ceará. The results of the hypotheses tests, with the application of the structural ...

Tópico(s): Consumer Packaging Perceptions and Trends

2016 - | Brazilian Business Review

Artigo Revisado por pares

Luis Ferruz Agudo, María Vargas, José Luis Sarto,

The performance of Spanish domestic equities improves considerably when diverse public information variables are taken into consideration. We have taken up to eight independent variables into consideration to evaluate the performance of a largely unexplored market over a broad horizon.

Tópico(s): Auditing, Earnings Management, Governance

2006 - Chapman and Hall London | Applied Financial Economics

Artigo Acesso aberto Revisado por pares

Mercedes Alda, Laura Andreu, José Luis Sarto,

This study examines the performance of managers over time, as well as its persistence, taking into account both manager characteristics and market conditions. Applying parametric and non-parametric methodologies, we examine a sample of UK equity pension fund managers. Our results help to understand the importance of manager assignments in the industry and reveal the importance and benefits of management specialization. We find certain manager performance persistence, revealing that some managers ...

Tópico(s): Corporate Finance and Governance

2017 - Elsevier BV | The North American Journal of Economics and Finance

Artigo Revisado por pares

Laura Andreu, José Luis Sarto, Luís Vicente,

A 2010 paper by Kaoru Tone proposes four variants of the slacks-based measure of efficiency (SBM) to overcome the limitations of this well-known Data Envelopment Analysis (DEA) approach when the reference points of the efficient frontier may not be adequate. In this study, we apply these variants for the first time to a real-world problem to evaluate the efficiency of one of the most relevant decisions in pension fund management: The strategic asset allocation. The results highlight the relevance ...

Tópico(s): Capital Investment and Risk Analysis

2013 - Palgrave Macmillan | Journal of the Operational Research Society

Artigo Brasil Produção Nacional Revisado por pares

Isis Hara Trevenzoli, Ana Lúcia Rodrigues, E. Oliveira, Alessandra Alves Thole, Laı́s de Carvalho, Mariana Sarto Figueiredo, Fabiane Pereira Toste, José Firmino Nogueira Neto, Magna Cottini Fonseca Passos, Patrícia Cristina Lisboa, Egberto Gaspar de Moura,

Epidemiological and experimental studies have associated development of metabolic syndrome with stressful events (nutritional, hormonal, or environmental) in early life. This phenomenon is known as programing and changes in adipokines levels in early life, especially leptin, seem to be involved with its development. We have shown that neonatal hyperleptinemia on lactation programs for leptin resistance, hyperthyroidism, and higher corticosterone and catecholamines levels with cardiovascular consequences. ...

Tópico(s): Adipokines, Inflammation, and Metabolic Diseases

2010 - Thieme Medical Publishers (Germany) | Hormone and Metabolic Research

Artigo Acesso aberto Revisado por pares

Laura Andreu, José Luis Sarto, Miguel Serrano,

This paper investigates the performance consequences of the risk shifting behavior shown by domestic equity mutual funds through the analysis of monthly portfolio holdings. The objective of this paper is to assess the implications of risk shifting for mutual fund investors. Specifically, we study the performance consequences of different mechanisms of risk shifting, such as the change in the composition between equity and cash holdings and the change of the systematic or idiosyncratic risk within ...

Tópico(s): Financial Literacy, Pension, Retirement Analysis

2019 - Elsevier BV | International Review of Economics & Finance

Artigo Revisado por pares

Daniela Di Bella, Stefania Magri, Chiara Benzoni, Laura Farina, C. Maccagnano, Elisa Sarto, Marco Moscatelli, Silvia Baratta, José Berciano, Sylvie Piacentini, Lara Draghi, Elena Mauro, Davide Pareyson, Cinzia Gellera, Franco Taroni, Ettore Salsano,

Abstract Background and purpose Little is known about hypomyelinating leukodystrophies (HLDs) in adults. The aim of this study was to investigate HLD occurrence, clinical features, and etiology among undefined leukoencephalopathies in adulthood. Methods We recruited the patients with cerebral hypomyelinating magnetic resonance imaging pattern (mild T2 hyperintensity with normal or near‐normal T1 signal) from our cohort of 62 adult index cases with undefined leukoencephalopathies, reviewed their clinical ...

Tópico(s): Trace Elements in Health

2020 - Wiley | European Journal of Neurology

Artigo Acesso aberto Brasil Produção Nacional

João Menezes Filho, Minelle E. Silva, José Sarto Freire Castelo,

With the transformation of the market into a provider of relevant symbolic resources, individuals like to demonstrate consumer goods that reflect their values and shared lifestyles.Thus, the aim of this study is to define identity profiles of craft beer enthusiasts based on their consumption practices.Using exploratory qualitative research, 55 consumers were interviewed and observations were made in the city of Fortaleza, Ceará, Brazil.The results present five consumer identity profiles in the culture ...

Tópico(s): Customer Service Quality and Loyalty

2020 - | Brazilian Business Review

Artigo

Luis Ferruz Agudo, José Luis Sarto, María Vargas,

This paper contains a preliminary financial analysis of the performance of a group of portfolios based on Sharpe's ratio and a variant thereof, which provides a more appropriate ranking while remaining true to the traditional measure. The main thrust of the financial analysis contained in the paper focuses on performance persistence in the subject portfolios over a period of eight years. A total of 207 Spanish short-term fixed interest investment funds are considered, and we show that over the reference ...

Tópico(s): Housing Market and Economics

2004 - RELX Group (Netherlands) | SSRN Electronic Journal

Artigo Acesso aberto Revisado por pares

L. González-Calvo, Elda Dervishi, M. Joy, P. Sarto, Roberto Martín‐Hernández, M. Serrano, José M. Ordovás, J. H. Calvo,

The objective of this study was to acquire a broader, more comprehensive picture of the transcriptional changes in the L. Thoracis muscle (LT) and subcutaneous fat (SF) of lambs supplemented with vitamin E. Furthermore, we aimed to identify novel genes involved in the metabolism of vitamin E that might also be involved in meat quality. In the first treatment, seven lambs were fed a basal concentrate from weaning to slaughter (CON). In the second treatment, seven lambs received basal concentrate from ...

Tópico(s): Animal Nutrition and Physiology

2017 - BioMed Central | BMC Genomics

Artigo Revisado por pares

Laura Andreu, Pilar Gargallo, Manuel Salvador, José Luis Sarto,

This paper proposes a dynamic Bayesian rolling window estimation procedure applied to the three‐factor model of Fama and French to analyse herding behaviour in the style exposures of mutual funds. This procedure allows a user to dynamically select the length of the estimation window by means of weighted likelihood functions that discount the loss of information because of time. This method is very flexible and allows us to consider different approaches of detecting herding behaviour by taking into ...

Tópico(s): Stochastic processes and financial applications

2014 - Wiley | Applied Stochastic Models in Business and Industry

Artigo Revisado por pares

Luis Ferruz Agudo, Cristina Ortiz, José Luis Sarto,

In the present study, we confirm the asymmetry of the performance-flow relationship documented in the literature, but with the particularities of the sample of Spanish funds. Thus, we conclude that mid-performers show no significant influence on investor decisions. The panel data analysis also allows us to conclude that custodial and management fees and the size of the fund have a negative impact on the flows into funds. Empirical evidence is provided on the differential response of investors to ...

Tópico(s): Auditing, Earnings Management, Governance

2009 - Chapman and Hall London | Applied Financial Economics

Artigo Revisado por pares

Laura Andreu, José Luis Sarto, Luís Vicente,

ABSTRACTThis paper firstly examines the strategic asset allocations followed by Spanish equity pension plans from 2001 to 2006. Once the investment style of each portfolio is known, the second aim of the paper is to analyse the performance obtained by these portfolios along with the performance obtained by their investment style to determine the value added by each manager and the suitability of the style chosen. In this sense, the performance evaluation has been conducted by considering different ...

Tópico(s): Financial Markets and Investment Strategies

2009 - Taylor & Francis | Spanish Journal of Finance and Accounting / Revista Española de Financiación y Contabilidad

Artigo Acesso aberto Revisado por pares

Pablo Vilas, Laura Andreu, José Luis Sarto,

The growth of passive and socially responsible (SR) investment makes that sustainability indices play an important role in defining what constitutes a sustainable investment. In order to know the suitability of sustainability indices as benchmarks for SR investors, we used different linear regressions to compare the compositions of sustainability indices and their conventional counterparts and to compare the levels of corporate social responsibility (CSR) of both types of indices. We showed that the ...

Tópico(s): Sustainable Building Design and Assessment

2021 - Multidisciplinary Digital Publishing Institute | Sustainability