principal component analysis
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Entrepreneurship and Human Development: An International Analysis.
... Each dimension is composed of four components, and each component is composed of indicators. The indicators are aggregated to each component through exploratory factor analysis, using principal component analysis (Stern, Wares, Orzell, & O'Sullivan, 2014). Appendix A ...
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The impact of CEO characteristics on organizational culture and on the silo effect.
... 3.3 Data analysis ... The CEOs surveyed were, on average, 49 years ... Component 1 was called "sharing," since it includes ...
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Rethinking abusive supervision: antecedents and reparative mechanisms of abusive supervision, including supervisor frustration, coworker support, guilt, and supervisor OCB in a mediated-moderation model.
... , the methods of investigation and analysis, the results of this study, a discussion of the ... For the un-rotated principal component factor analysis, eight factors were ...
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Economic gains of realized volatility in the Brazilian stock market/Ganhos economicos da volatilidade realizada no mercado Brasileiro de acoes.
... we sum up the contribution of the mean component, [mu](t), to the variation of returns we will ... does not make sense in an intraday analysis. The 5-min sampling frequency is our choice as is ... By applying a Principal Component Analysis, we can consolidate into as ...
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Anomalies and Investor Sentiment: Empirical Evidences in the Brazilian Market.
... sentiment index is an important component of asset pricing in Brazil--make way for new ... index constructed on the first principal component of six proxies related to investor ... Sample and data ... The analysis was conducted considering the period from 1999 to ...
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Social Innovation in Brazilian Social Entrepreneurships: A Proposed Scale for its Classification.
... (2016) carried out a bibliometric analysis to trace the content, scope, and relatively short ... For this, principal component analysis (PCA) is commonly used ...
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Future Intention to disclose personal information via mobile apps
This study analyses the future intention to disclose personal information in order to use apps and the framing effect in relation to privacy concerns. To test the effects, an experiment was conducted involving 405 participants, using a single-factor design with independent groups and covariates. The results indicate concern about privacy is negatively related to the future intention, confirming...
... should consider different levels of analysis, as well as the effects these different levels ... , with Exploratory Factor Analysis using principal component analysis and varimax rotation (Hair et ... -
Private equity and venture capital funds: what drives the demand and supply?
... Using Factor Analysis, we modeled variables that possibly affect the ... is to summarize variables, we used the Principal Component Analysis (PCA) and R- Type that, ...
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Investigación contable, un estudio bibliométrico: identificación de publicaciones relevantes y examen de la estructura intelectuall
Este artigo examina a pesquisa contábil ao longo das últimas duas décadas, definida como estudos publicados em seis periódicos acadêmicos de contabilidade entre 1995 e 2014. Especificamente tem por objetivos: identificar os artigos relevantes (mais citados) e reconhecer grupos de conhecimento em contabilidade explorando a estrutura intelectual da disciplina. Como resultado da análise da citação sã
... As a result of the quotation factorial analysis it was individualized the 56 most quoted ... Método de Extracción: Principal Component Analysis. Método de Rotación: Varimax ... -
Profiling the buzz agent: product referral and the study of social community and brand attachment.
... and entertainment, which always has a component of functionality to it. For instance, a consumer ... a buzz agent measurement, we pursue an analysis that enables identifying characteristics that ... Raskin, R., & Terry, H. (1988). A principal-components analysis of the narcissistic ...
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Multi-Unit Franchising and Relational Governance: A Study of Operating Networks in Brazil.
... The data for the analysis were collected from multiple sources, all based ... open communication channels is a vital component in fostering a more relational form of governance ... franchisors and were constructed using principal component analysis. To assess the internal ...
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Entrepreneurship Education and its Influence on Higher Education Students' Entrepreneurial Intentions and Motivation in Portugal.
... ' This same study conducted a principal component analysis and concluded that the main ...
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Governança Corporativa e Crises: mecanismos importantes durante ciclos econômicos distintos
Esta pesquisa investigou se os mecanismos de governança corporativa, segundo a Teoria da Agência, assumem importâncias distintas em diferentes ciclos econômicos. O período foi de 2000 a 2009, segmentado em: crises locais (2000-2002); não crise (2003-2007); e crise global (2008-2009). Os mecanismos de governança analisados foram: estrutura de propriedade, conselhos de administração, compensação...
... The methodology involved: (a) principal component analysis, aggregating in an indicator a ... -
Relações entre urbanização e meio ambiente: um panorama para os estados brasileiros
A discussão sobre os problemas urbanos e as mudanças ambientais vividos pela população brasileira, em especial nas grandes cidades, é bastante atual e sugere mais pesquisas a respeito do assunto. Dessa forma, a proposta deste trabalho é analisar os efeitos de três dimensões (socioeconômica, demográfica e ambiental) que estão associadas, de alguma forma, ao processo de urbanização no Brasil. Para...
... a set of methodological techniques: a) Principal Component Analysis (PCA) and b) Cluster Analysis ... -
Proposta para a estimação da corrupção regional no Brasil
Este artigo tem por objetivo apresentar uma metodologia alternativa de estimação da corrupção regional no Brasil. Sabe-se que a corrupção afeta negativamente a eficiência dos serviços públicos, e mesmo sendo um problema antigo, somente há pouco tempo têm sido aprofundados os estudos nessa área. São poucos, e muitas vezes inconsistentes os índices com dados objetivos para calcular a corrupção....
... este novo índice, utilizamos como a principal fonte de dados a base de dados do Cadastro de ... ABDI. H.; WILLIAMS, L. J. Principal Component Analysis. Computational Statistics , v. 2, p ... -
Economic gains of realized volatility in the Brazilian stock market
This paper evaluates the economic gains associated with following a volatility timing strategy based on a multivariate model of realized volatility. To study this issue, we build a high frequency database with the most actively traded Brazilian stocks. Comparing with traditional volatility methods, we find that, when estimation risk is controlled, economic gains associated with realized measures...
... we sum up the contribution of the mean component, (t), to the variation of returns we will find ... does not make sense in an intraday analysis. The 5-min sampling frequency is our choice as is ... By applying a Principal Component Analysis, we can consolidate into as ... -
Concept of innovation in low-income market.
... Therefore, our analysis focuses on the consumer and all the elements of ... a. Extraction Method: Principal Component Analysis; b. Rotation Method: Varimax ...
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El impacto de la crisis de 2008 en la estructura temporal de correlación condicional de BM&FBOYESPA.
... The analysis of the term behavior of the Brazilian stock ... with random price changes; and principal component analysis, to demonstrate that a small ...
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Selection of a portfolio of pairs based on cointegration: a statistical arbitrage strategy/Selecao de uma carteira de pares de acoes usando cointegracao: uma estrategia de arbitragem estatistica.
... variety of investment strategies whose principal characteristic is the use of statistical tools to ... Avellaneda & Lee (2010) use Principal Component Analysis or sector ETFs in their statistical ...
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Práticas gerenciais e inovação: um estudo em empresas do porto digital do Recife (PE)
Este estudo objetiva verificar as relações entre as práticas de controle gerencial e inovação adotadas pelas empresas vinculadas ao Porto Digital. Foram obtidos 30 questionários válidos na pesquisa, objetivando identificar há relação entre as características da empresa e inovação (hipótese 1), concluindo-se que as empresas que prestam contas aos sócios tendem a não investir em inovação, sugerindo
... managerial practices, a factor analysis was used. There was a positive association ... Quadro 2: Rotated Component Matrix a ... Component 1 2 3 4 ... Extraction Method: Principal Component Analysis ... Rotation Method: ... -
Dimensões de escalas atitudinais parentais acerca do contato com a natureza
O estudo objetivou investigar a estrutura interna de duas escalas de atitude parental, originalmente produzidas em língua inglesa e então adequadas ao contexto brasileiro. Da aplicação de questionários online com 105 genitores, propriedades psicométricas dos instrumentos foram investigadas pela análise de consistência interna, de componentes principais e estudo relacional entre as variáveis...
... by means of internal consistency and principal component analysis, besides the relational study ... -
The role of compensation in shaping employee's behaviour: a mediation study through job satisfaction during the Covid-19 pandemic.
... prepare the data sheet and demographic analysis for the present study. In order to test the study ... by entering the main constructs into a principal component factor analysis (Podsakoff, MacKenzie, ...
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Competitive Price and Trust as Determinants of Purchase Intention in Social Commerce.
... in the model, presenting the data analysis and the main research findings. Finally, in fifth ... -factor test by including all items in a principal component factor analysis and examined the ...
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Antecedents of organisational professional conflict faced by professional accountants in different work settings.
... In contrast, if accountants see their principal role as being to serve their firms' and clients' ... A confirmatory factor analysis (not tabulated) revealed that all pressures were ... Principal component factor analysis was used to test the ...
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Technological capability, relational capability and firms' performance: The role of learning capability.
... under study were subjected to one principal component factor analysis to statistically ...