Physical activity,leisure-time,cognition and academic grades: Connections and causal effects in Chinese students

Academic achievement and positive leisure activities are traditionally considered significant determinants of economic growth and human capital accumulation. This paper estimates the impact of physical activity on academic outcome and time allocation to 25 different types of leisure activity by Chinese adolescents. We use structural equation models (SEM) to explore the channels of this transmission. Our results suggest that physical exercise not only exerts a positive direct effect on academic outcome but also increases (decreases) students' time devoted to activities that are positively (negatively) correlated with academic outcome. All the effects are statistically significant but modest at the individual level. Our findings are robust to different exercise frequencies and academic outcome indicators based on students' self-assessment, academic scores, and cognitive tests.     

Internet use and agricultural productivity in rural Vietnam

The use of the internet is growing rapidly and has become an engine for economic development. However, few studies have examined the impact of internet use on agricultural production, and the results are not yet conclusive. Employing a dataset of more than 2000 observations in rural Vietnam, our study analyses the impact of internet use on agricultural productivity using the heteroscedasticity-based instrument approach suggested by Lewbel, Journal of Business and Economic Statistics, 2012, 30, 67–80 and examines the heterogeneity and distribution of the impact using quantile regressions. Our results show that internet use has significant and positive effects on agricultural productivity. However, these effects are heterogeneous across population groups. The positive effects of internet use are stronger for households with a lower level of education, with a young and female head, and from ethnic minorities. The benefits are also found to be skewed towards the group of farmers at the bottom of the productivity distribution. Therefore, we propose facilitating the diffusion of the internet, since it not only boosts agricultural productivity, but also reduces productivity inequality. In addition, we recommend promoting rural education, supporting local markets, investing more in irrigation systems, and facilitating farm mechanisation as these factors are found to contribute to increasing agricultural productivity.     

Universities’ efficiency and the socioeconomic characteristics of their environment — Evidence from an empirical analysis

This paper investigates how the efficiency of universities is affected by the characteristics of the territory in which they operate. The theoretical framework combines two perspectives: (1) the resource dependence theory, suggesting that the location of university can determine the amount of resources available to it; (2) institutional isomorphism, according to which the characteristics of other higher education institutions located in the same area may shape the university production function and the efficiency of its operations. In order to test this framework we use data on Russian universities and a non-parametric conditional order-m efficiency estimator with two categories of contextual variables. The first group includes the social, economic and cultural characteristics of the region where the university is located, while the second deal with the characteristics of other higher education institutions located in the same region. The main contribution of this paper is that it applies efficiency models that incorporate exogenous factors associated with a geographical area in context of higher education. Our findings highlight that the managerial efficiency of universities is strongly associated with the contextual factors of the environment in which they are embedded. Important policy implication of this result is that different public policies in higher education should treat particular universities differently depending on characteristics of context in which they operate.     

Italy: Immigration and the evolution of populism

We study the effect of immigration on the upsurge of right-wing populism in Italy. Our data considers electoral results at the municipality level of the Senate of the Italian Republic and the Chamber of Deputies over the period 2006–2018. Using an IV strategy based on the shift–share instrument, we find that immigration generates a sizable causal increase in votes for the right-wing populist party Lega. Immigration also works as a major catalyst for the electoral distance between Lega and its most direct competitors. We explore how different levels of tax autonomy impact the results, as well as how the re-branding of Lega as a national movement affects the relation between immigration and support for the party.