Search results for "Correlation"
showing 10 items of 2282 documents
Macroeconomic knowledge of higher education students in Germany and Japan – a multilevel analysis of contextual and personal effects
2016
Recent trends towards harmonising and internationalising business and economics studies in higher education are affecting the structure and content of programmes and courses, and necessitate more transparent and comparable information on students’ economic knowledge and skills. In this study, we examine by linear multilevel regression modelling the current state of macroeconomic knowledge of higher education students in Germany and Japan, while controlling for the effects of key study-related aspects such as study progress and completion of economics courses. We assess macroeconomic knowledge using the internationally established Test of Understanding in College Economics, which has been ad…
A systematic review of sovereign connectedness on emerging economies.
2019
This article systematically reviews the academic literature on emerging market contagion in order to summarize what we have learnt about the transmission channels existing in these countries. Given the large body of academic research focused on this topic, we especially direct our attention to the strand of the literature that defines and empirically analyses this topic as the significant increase in the cross-market correlations between asset returns during crisis periods or when a shock occurs. The survey covers the findings on financial contagion in the stock, bond, exchange and credit default swap markets during a large period that covers several crises that have characterized the relat…
Simultaneity between strategic variables: Production, innovation, and product differentiation
1995
This paper aims to analyze the existence of simultaneous effects among the variables production, product differentiation, and innovation. Microeconomic data from a sample of 2,160 firms are used as a base. Empirical results show that a positive correlation exists from innovation to product differentiation, thus showing that it is in the process of production itself, through technical improvements, where product differentiation is determined. On the other hand, no positive effect exists from product differentiation to innovation, i.e., once technical improvements have been established, firms exchange the barriers to entry created by brand image for the real barriers established by innovation…
Why is equity order flow so persistent?
2015
Abstract Order flow in equity markets is remarkably persistent in the sense that order signs (to buy or sell) are positively autocorrelated out to time lags of tens of thousands of orders, corresponding to many days. Two possible explanations are herding, corresponding to positive correlation in the behavior of different investors, or order splitting, corresponding to positive autocorrelation in the behavior of single investors. We investigate this using order flow data from the London Stock Exchange for which we have membership identifiers. By formulating models for herding and order splitting, as well as models for brokerage choice, we are able to overcome the distortion introduced by bro…
A Note on Resampling the Integration Across the Correlation Integral with Alternative Ranges
2003
Abstract This paper reconsiders the nonlinearity test proposed by Ko[cbreve]enda (Ko[cbreve]enda, E. (2001). An alternative to the BDS test: integration across the correlation integral. Econometric Reviews20:337–351). When the analyzed series is non‐Gaussian, the empirical rejection rates can be much larger than the nominal size. In this context, the necessity of tabulating the empirical distribution of the statistic each time the test is computed is stressed. To that end, simple random permutation works reasonably well. This paper also shows, through Monte Carlo experiments, that Ko[cbreve]enda's test can be more powerful than the Brock et al. (Brock, W., Dechert, D., Scheickman, J., LeBar…
The exchange rates – indicators for assessing the financial performance of the companies from Romania
2016
Abstract The research aims to determine the financial performance of the companies listed and traded on the Bucharest Stock Exchange from the manufacturing sector in Romania, compared with the performance recorded by the Bucharest Stock Exchange, based on the exchange rates. It was concluded that the financial performance of the companies included in the research, quantified on the basis of the exchange rates, decreased significantly with the arrival of the financial and economic crisis, currently, the companies being unable to reach the level of performance recorded before the crisis.
TESTING FOR CONTAGION: A CONDITIONAL CORRELATION ANALYSIS
2005
Abstract In this paper, we test for contagion within the East Asian region, contagion being defined as a significant increase in the degree of comovement between stock returns in different countries. For this purpose, we use a parameter stability test, and, following [Rigobon, R., 2003a. On the measurement of the international propagation of shocks: is the transmission stable?, Journal of International Economics], we control for three types of bias, resulting from heteroscedasticity, endogeneity and omitted variable, respectively. The null of interdependence against the alternative of contagion is then tested as an overidentifying restriction. Unlike other studies, our approach is based on …
Heterogeneous effects of sustainable agriculture practices: micro-evidence from Malawi
2020
Abstract Are the effects of sustainable agricultural practices heterogeneous across agro-ecology and wealth in Malawi? Would a wealth-enhancing policy be associated with increased effectiveness of these practices? Focusing on a nationally representative set of Malawian agricultural households, the article answers the above questions by employing plot-level panel data matched with a set of geo-referenced rainfall and temperature records. The findings suggest a positive correlation between aggregate yield and the adoption of organic fertilizer. A similar result holds for legume intercropping and for hybrid seeds, which are associated to reductions in yield volatility between the two waves. Ne…
When financial economics influences physics: The role of Econophysics
2019
This paper aims at analyzing the unexpected influence of Financial economics on Physics. The rise of Econophysics, a fundamentally new approach in finance, suggests that the influence between the two disciplines becomes less unilateral than in the past. Methodological debates emerging in Econophysics led physicists to acknowledge that dealing with financial complex systems contributed to a wider modelling of their field. The approach of econophysicists suggests that physicists might try to conceptualize physical phenomena by integrating elements they faced with in Financial economics, and more generally in Economics. Surprisingly, many of econophysicists’ argumentations have some methodolog…
Dynamics of female labour force participation in France
2013
International audience; This article formulates and estimates a structural intertemporal model of labour force participation. Relying on theoretical characterizations derived from an economic model of lifetime behaviour, we estimate a dynamic probit model with correlated random effects using longitudinal data to allow for a dynamic structure. The model is applied to a panel of married women drawn from the 1997–2002 French Labour Force surveys in order to represent their participation behaviour. It is estimated by maximum simulated likelihood. Our results show that women’s decisions to go out to work are characterized by significant state dependence, unobserved heterogeneity and negative ser…