Search results for "USA"

Sapotrophical development of fusarium graminearum : respective role of different natural habitats of the fungus in the wheat infectious process in Bu…

2012

Fusarium Head Blight (FHB), mainly caused by the fungal species Fusarium graminearum, is one of the most important disease altering wheat crops in Burgundy. Moreover the plant-pathogen interaction leads to the production of mycotoxins potentially toxic for humans and animals.The only alternative to date to prevent the development of the disease is to control the saprotrophic development of F. graminearum in its natural habitat, i.e. weeds, soil and crops residues. Due to the trend of reduced tillage, special attention should be paid to the role of crop residues in the survival and development of F. graminearum.Two approaches were chosen to better understand the saprotrophic development of F…

Acceptance and Continuance Intention of Web-based Learning Technologies (WLT) Use among University Students in a Baltic Country

2006

This paper presents the acceptance and "continuance intention" of use for Web-based learning tools among University students in an Eastern European Country, namely Estonia. In this paper, we used the technology acceptance model (TAM), which was extended to include two external constructs: the technology and user characteristics. These two constructs were modeled to influence the perceived ease of use, and perceived usefulness constructs in the TAM. Further, another construct - continuance intention - in the information systems (IS) post-adoption literature was linked to the TAM. We used a sample of 72 students from four local higher educational institutions that have experience with a speci…

Prefazione

2013

Humanities and Social Sciences. Latvia: Vol. 27, N 1 (Spring-Summer 2019)

2019

Unequal Attainments: Ethnic educational inequalities in ten Western countries

2014

Western countries have become increasingly diverse in recent decades and these demographic trends are certain to continue. The resulting ethnic diversity is a major challenge to policy-makers, who need to tackle issues of social justice and social integration. Education plays a pivotal role since it is the major stepping stone for the children of immigrants to successful economic integration and also plays a major role in social and political integration more generally since education gives access to the skills, resources and contacts which enable individuals to participate fully in the life of their society. Our central research questions are: Do the descendants of migrants experience equa…

The creative class: do jobs follow people or do people follow jobs?

2017

Accepted manuscript version. Published version available in Regional Studies, DOI: 10.1080/00343404.2016.1254765 Regional adjustment models are applied to explore causal interaction between two types of people distinguished by educational attainment, and two types of jobs: creative class jobs and other jobs. Data used are for labour market regions in Finland, Norway and Sweden from the 2000s. Creative class jobs follow people with high educational attainment (one way causation), but creative class jobs also follow other jobs and vice versa (circular causation). The results suggest that stimulating creative class job growth could be accomplished through attracting people with higher educatio…

Stock earnings and bond yields in the US 1871–2017 : The story of a changing relationship

2021

Abstract Using historical data spanning almost 150 years, we examine whether there is a long-run equilibrium relationship between the stock's earnings and bond yields. The novelty of our econometric methodology consists in using a vector error correction model where we allow multiple structural breaks in the equilibrium relationship. The results of our analysis suggest the existence of an equilibrium relationship over 1871–1932 and 1958–2017. On the two historical segments, our analysis finds that the stock's earnings yield followed the bond yield in both the short run and long run, but not the other way around. Perhaps the most important and surprising finding of our empirical study is tha…

Main driving factors of the interest rate-stock market Granger causality

2017

Abstract This paper investigates the causal relationship between changes in the 10-year Treasury bond yield and the S&P 500 stock return in the United Sates with emphasis on time variation, stress factors and smooth regime transition. First, the time-varying Granger causality test proposed by Lu et al. (2014) is applied. Then a two-regime multifactor smooth transition regression model with a single transition variable representing a wide range of macroeconomic and financial variables is estimated in order to identify the key explanatory factors governing the causal relationship. The results show a significant bidirectional causal relationship over most of the study period, mainly due to the…

Variable selection in the analysis of energy consumption-growth nexus

2015

There is abundant empirical literature that focuses on whether energy consumption is a critical driver of economic growth. The evolution of this literature has largely consisted of attempts to solve the problems and answer the criticisms arising from earlier studies. One of the most common criticisms is that previous work concentrates on the bivariate relationship, energy consumption–economic growth. Many authors try to overcome this critique using control variables. However, the choice of these variables has been ad hoc, made according to the subjective economic rationale of the authors. Our contribution to this literature is to apply a robust probabilistic model to select the explanatory …

Time-varying causality between crude oil and stock markets: What can we learn from a multiscale perspective?

2017

This paper investigates the presence of time-varying causal linkages in mean and variance between oil price changes and stock returns for six major oil-importing countries (France, Germany, Italy, Spain, the UK and the US) in a multiscale framework that combines wavelet analysis and a modified version of the dynamic causality test of Lu, Hong, Wang, Lai, and Liu (2014). The results show significant bidirectional causal relations between oil and stock markets at the different time horizons for all countries. The causal links tend to be stronger at coarser scales and in periods of financial turmoil, mainly during the recent global financial and European sovereign debt crises. This evidence pr…