scholarly journals A Multilevel Analysis of the Returns to Education in Ecuador. The Multifaceted Impact of Human Capital

2016 ◽  
Vol 63 (s1) ◽  
pp. 1-19 ◽  
Author(s):  
Mercy Raquel Orellana ◽  
Monica Răileanu Szeles ◽  
Dalia Maritza Argudo Barrera

Abstract This paper analyses the returns to education in Ecuador based on cross-sectional data collected by a National Survey at the individual- and canton-levels in 2005 and 2015. The multilevel analysis provides the methodological framework that allows capturing the regional peculiarities of data as well as addressing the high regional economic heterogeneity. The two level- random intercept and random slope models are used to examine the impact of individual-level and canton-level characteristics on the labour income. In subsidiary, the paper explains the proportion of variance in individual- level income that is explained by canton- level characteristics.

2001 ◽  
Vol 33 (4) ◽  
pp. 603-622 ◽  
Author(s):  
PAULA GRIFFITHS ◽  
ANDREW HINDE ◽  
ZOË MATTHEWS

Using cross-sectional, individual-level survey data from Maharashtra, Tamil Nadu and Uttar Pradesh collected under the Indian National Family Health Survey programme of 1992–93, statistical modelling was used to analyse the impact of a range of variables on the survival status of children during their first 2 years of life. Attention was focused on the potential impact of the mother’s autonomy. The strongest predictors of mortality were demographic and biological factors, breast-feeding behaviour, and use and knowledge of health services. Variables that can be interpreted as being related to maternal autonomy, such as the presence of a mother-in-law in the household, did not have a significant direct effect on child survival at the individual level, and their indirect effects were very limited.


2014 ◽  
Vol 37 (2) ◽  
pp. 130-151 ◽  
Author(s):  
Evangelia Siachou ◽  
Panagiotis Gkorezis

Purpose – The present study aims to contribute to the limited empirical research regarding the individual level antecedents of absorptive capacity (AC). In this vein, the authors examined the impact of employees' psychological empowerment (PE) dimensions on their AC. Moreover, the authors explored the magnitude of the relationship between one of PE four dimensions, namely competence, and AC compared to that of the rest three dimensions of PE. Design/methodology/approach – The authors collected data from 100 private employees working in two manufacturing organizations. In order to investigate the hypotheses, the authors conducted hierarchical regression and usefulness analysis. Findings – As predicted, the present results showed that all four PE dimensions affected employees' AC. Furthermore, competence demonstrated the strongest impact among all PE dimensions. Research limitations/implications – Data were drawn from two manufacturing organizations located in specific geographical area. Thus, this may constrain the generalizability of the results. Also, the cross-sectional analysis of the data cannot directly assess causality. Originality/value – To the best of the authors' knowledge, this is the first empirical study examining the relationship between PE and AC.


2010 ◽  
Vol 14 (2) ◽  
pp. 189-211 ◽  
Author(s):  
Jakub Growiec

Human capital is embodied in people of different generations whose lifetimes are finite. We show that the finiteness of people's lives precludes human capital accumulation from driving long-run aggregate economic growth unless sufficiently strong externalities from aggregate human capital are introduced. Two possible channels for carrying forward such externalities are (i) knowledge spillovers and (ii) public education spending. Our findings shed new light on the foundations of the Uzawa–Lucas growth model. We also show that the cross-sectional Mincer equation, generated by a linear human capital accumulation equation at the individual level, does not carry forward to aggregate data.


2006 ◽  
Vol 82 (6) ◽  
pp. 775-781 ◽  
Author(s):  
R. J Irvine

AbstractThe impact of parasites on domestic livestock is well known. It is also clear that parasites have the potential to reduce reproductive success and survival at the individual level in wild animal populations (often through effects on body condition). However, the degree to which these impacts can regulate populations is difficult to determine because of the logistics of conducting the necessary experimental manipulations of either hosts or parasites. In addition, the relative importance of this mechanism compared to other regulatory factors such as predation and competition for food resources has not been quantified. Studies that have investigated the impact of parasites on wild mammals are reviewed and the merits of cross-sectional sampling and experimental approaches are presented. Finally, evidence for parasite mediated population regulation in wild mammals is examined and the need to develop experimental approaches that address this mechanism and its interaction with other regulatory processes is discussed.


2018 ◽  
Vol 10 (8) ◽  
pp. 991-1001 ◽  
Author(s):  
Efraín García-Sánchez ◽  
Jojanneke Van der Toorn ◽  
Rosa Rodríguez-Bailón ◽  
Guillermo B. Willis

People’s desired levels of inequality are informed by the levels of inequality they perceive to exist. Perceived economic inequality is used as a reference point in determining people’s ideal level of inequality. However, recent research has suggested that the strength of this relationship depends on people’s endorsement of system-justifying beliefs. The current article extends this body of research by replicating these findings across 41 countries ( N = 42,078), showing the impact of system-justifying beliefs at both the individual and the societal levels. We conducted a multilevel analysis and found that the higher the endorsement of equality of opportunity beliefs—both at the individual and the societal levels—and meritocratic beliefs—at the individual level—the stronger the relationship between perceived and ideal economic inequality. These findings are in support of a motivated account of the perceived legitimacy of economic inequality.


2021 ◽  
Vol 10 (6) ◽  
pp. 1161
Author(s):  
Raluca Pais ◽  
Thomas Maurel

The epidemiology and the current burden of chronic liver disease are changing globally, with non-alcoholic fatty liver disease (NAFLD) becoming the most frequent cause of liver disease in close relationship with the global epidemics of obesity, type 2 diabetes and metabolic syndrome. The clinical phenotypes of NAFLD are very heterogeneous in relationship with multiple pathways involved in the disease progression. In the absence of a specific treatment for non-alcoholic steatohepatitis (NASH), it is important to understand the natural history of the disease, to identify and to optimize the control of factors that are involved in disease progression. In this paper we propose a critical analysis of factors that are involved in the progression of the liver damage and the occurrence of extra-hepatic complications (cardiovascular diseases, extra hepatic cancer) in patients with NAFLD. We also briefly discuss the impact of the heterogeneity of the clinical phenotype of NAFLD on the clinical practice globally and at the individual level.


Foods ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 681
Author(s):  
Nora A. Althumiri ◽  
Mada H. Basyouni ◽  
Ali F. Duhaim ◽  
Norah AlMousa ◽  
Mohammed F. AlJuwaysim ◽  
...  

Background: Food waste and food insecurity may co-exist in various balances in developing and developed countries. This study aimed to explore the levels of food waste and food insecurity, the factors associated with them, and their relationships at the household and individual levels in Saudi Arabia. Methods: This study was a nationwide cross-sectional survey conducted via computer-assisted phone interviews in January 2021. Quota sampling was utilized to generate balanced distributions of participants by gender across all the administrative regions of Saudi Arabia. Data collection included household demographics, food waste and disposal, the Food Insecurity Experience Scale (FIES), and the Household Food Insecurity Access Scale (HFIAS). Results: Out of the 2807 potential participants contacted, 2454 (87.4%) completed the interview. The mean age was 31.4 (SD = 11.7; range = 18–99) and 50.1% were female. The weighted prevalence of uncooked food waste in the last four weeks was 63.6% and the cooked food waste was 74.4%. However, the food insecurity weighted prevalence at the individual level (FIES) was 6.8%. In terms of food insecurity at the household level (HFIAS), 13.3% were in the “severely food insecure” category. Moreover, this study found that “moderately food insecure” households were associated with an increased likelihood to waste uncooked food (relative risk (RR) = 1.25), and the “mildly food insecure” (RR = 1.21) and “moderately food insecure” (RR = 1.17) households were associated with an increased likelihood to waste cooked food. However, “food secure” households were associated with a decreased likelihood to waste cooked food (RR = 0.56). Finally, this study identified four household factors associated with food waste and three household factors that were associated with “severe food insecurity.” Conclusions: This first national coverage study to explore food waste and food insecurity at the individual level and household level, identified household factors associated with food waste and food insecurity and identified new associations between food waste and food insecurity in Saudi Arabia. The associations found between food waste and food insecurity are potential areas of intervention to reduce both food waste and food insecurity at the same time, toward achieving the Sustainable Development Goal (SDG) targets related to food waste and food security.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Gerardo Chowell ◽  
Sushma Dahal ◽  
Raquel Bono ◽  
Kenji Mizumoto

AbstractTo ensure the safe operation of schools, workplaces, nursing homes, and other businesses during COVID-19 pandemic there is an urgent need to develop cost-effective public health strategies. Here we focus on the cruise industry which was hit early by the COVID-19 pandemic, with more than 40 cruise ships reporting COVID-19 infections. We apply mathematical modeling to assess the impact of testing strategies together with social distancing protocols on the spread of the novel coronavirus during ocean cruises using an individual-level stochastic model of the transmission dynamics of COVID-19. We model the contact network, the potential importation of cases arising during shore excursions, the temporal course of infectivity at the individual level, the effects of social distancing strategies, different testing scenarios characterized by the test’s sensitivity profile, and testing frequency. Our findings indicate that PCR testing at embarkation and daily testing of all individuals aboard, together with increased social distancing and other public health measures, should allow for rapid detection and isolation of COVID-19 infections and dramatically reducing the probability of onboard COVID-19 community spread. In contrast, relying only on PCR testing at embarkation would not be sufficient to avert outbreaks, even when implementing substantial levels of social distancing measures.


2015 ◽  
Vol 45 (8) ◽  
pp. 2048-2069 ◽  
Author(s):  
Elisabeth Schulz ◽  
Henk M. Schuttelaars ◽  
Ulf Gräwe ◽  
Hans Burchard

AbstractThe dependency of the estuarine circulation on the depth-to-width ratio of a periodically, weakly stratified tidal estuary is systematically investigated here for the first time. Currents, salinity, and other properties are simulated by means of the General Estuarine Transport Model (GETM) in cross-sectional slice mode, applying a symmetric Gaussian-shaped depth profile. The width is varied over four orders of magnitude. The individual along-channel circulation contributions from tidal straining, gravitation, advection, etc., are calculated and the impact of the depth-to-width ratio on their intensity is presented and elucidated. It is found that the estuarine circulation exhibits a distinct maximum in medium-wide channels (intermediate depth-to-width ratio depending on various parameters), which is caused by a maximum of the tidal straining contribution. This maximum is related to a strong tidal asymmetry of eddy viscosity and shear created by secondary strain-induced periodic stratification (2SIPS): in medium channels, transverse circulation generated by lateral density gradients due to laterally differential longitudinal advection induces stable stratification at the end of the flood phase, which is further increased during ebb by longitudinal straining (SIPS). Thus, eddy viscosity is low and shear is strong in the entire ebb phase. During flood, SIPS decreases the stratification so that eddy viscosity is high and shear is weak. The circulation resulting from this viscosity–shear correlation, the tidal straining circulation, is oriented like the classical, gravitational circulation, with riverine outflow at the surface and oceanic inflow close to the bottom. In medium channels, it is about 5 times as strong as in wide (quasi one-dimensional) channels, in which 2SIPS is negligible.


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