Preschool for all? Enrollment and maternal labour supply implications of a bilingual preschool policy

ABSTRACT

Previous research supports the effectiveness of preschool in various contexts, yet there is limited evidence whether universal-type preschool policies induce changes in enrollment. While certain states have enacted universal preschool policies, some have also considered bilingual preschool mandates, either as a supplementary or stand-alone policy, requiring schools to open up bilingual classrooms for children from non-English speaking families. The question of whether bilingual preschool policies can induce enrollment and close achievement gaps between English learners and English speakers is particularly important today for urban cities and states with large immigrant populations. In this study, I exploit exogenous variation from the first bilingual prekindergarten mandate in Illinois to estimate the causal effects on preschool enrollment and maternal labour supply of recently immigrated and Hispanic families. Utilizing a difference-in-differences strategy, estimates suggest significant effects on preschool enrollment between 18% and 20% and no effects of increasing maternal labour supply in Illinois. Estimates are robust to various specifications, control groups, and timeframes. I use the analysis to further discuss whether universal preschool policies are designed sufficiently for access and inclusion of various student types, and contribute to our understanding on the effectiveness of using childcare subsidies to increase the welfare of low-income families.     

武术功法八段锦对肥胖的研究现状

健身气功"八段锦"越来越受到群众的广泛欢迎。本文从机理探讨、临床效果等方面对八段锦的研究近况进行了综述,以期对八段锦的减肥健身及防治糖尿病的进一的步展起到促进作用。     

Entrepreneurship and birth order: fact or folklore

Prior research into the birth order of entrepreneurs has supported the commonly held belief that entrepreneurs tend to be first–born children. Traditional birth–order theory and our research question this belief and its supporting research for three fundamental reasons. First, conceptually, birth order does not facilitate the prediction of entrepreneurial tendencies nor does it enable us to influence an individual in the direction of entrepreneurial pursuits, two basic goals of social science theory and research. Second, conclusions from research on entrepreneurs and birth order are inconsistent with and do not support the predictions of traditional birth–order theory. Finally, birth–order research in the area of entrepreneurship has been plagued by poor methodological control of intervening variables such as family size, socio–economic level, and education levels. An empirical test using the necessary methodological controls was conducted. As hypothesized, no relationship was found between entrepreneurship and birth order.     

A weighty issue revisited: the dynamic effect of body weight on earnings and satisfaction in Germany

We estimate the relationship between changes in the body mass index (bmi) and wages or satisfaction, respectively, in a panel of German employees. In contrast to previous findings, our dynamic models indicate an inverse u-shaped association between bmi and wages. As the implied maximum occurs in the ‘overweight’ category, the positive trend in weight may not yet constitute a major limitation to productivity. Further investigation points out a stronger association among young workers and workers with jobs that are less protected. Work satisfaction of young workers is associated with bmi beyond the effect of earnings.     

Pedestrian and motorists’ actions at pedestrian hybrid beacon sites: findings from a pilot study

The objective of the study was to examine the effects of overweight and obesity on times to recovery among Canadian youth who have suffered one or more types of injury. The data source was the 2002 Canadian Health Behaviour in School-Aged Children (HBSC) survey. The study population included 7266 youth in grades 6 through 10 sampled from all Canadian provinces and territories. Of these, 2831 students reported an injury event and were included in the analysis. Kaplan–Meier curves and hazard ratios (HR) were used to profile survival functions and estimate relative hazards for non-recovery from injury events among normal weight, overweight and obese youth. Youth who were obese and suffered a combined injury (broken bone and strain/sprain) took longer to recover (HR: 1.81, 95% CI 0.99–3.32) compared to normal weight youth. HR for injury recovery in obese youth were not significantly elevated for broken bones (1.15, 95% CI 0.61–2.19) and sprain/strains (1.17, 95% CI 0.73–1.85) in isolation. Obesity was associated with times for injury recovery among injured youth. If these findings are confirmed in other settings, clinicians providing an injury recovery prognosis may need to take into account BMI status and allow for extra recovery time for patients in this age range.     

Advertising and Children

Abstract

This article reviews the debate regarding the issue of growing obesity in society in terms of issues and possible policy options. The issue is most focused on children though having obvious ramifications for adults in many economies around the world. Policy solutions such as advertising bans or taxes that have been proposed in several countries seem to be based on insufficient evidence—i.e., there is no empirical evidence to substantiate the claimed causal effect between marketing communication practices directed at children and nutrition. These solutions, if enacted in policy, could be both inequitable and ineffective. While the study is couched and framed from a New Zealand context, nonetheless it serves to illuminate issues and policies of wider relevance.     

Exploring the link between obesity and advertising in New Zealand

This paper reviews the debate on the causes and potential solutions to growing obesity and whether there is a proven correlation with advertising, particularly among children. The paper first considers this debate from the context of the burgeoning literature on this topic. The findings from an empirical study with parents of primary‐age children in New Zealand are then presented. However, any kind of proposed relationship between obesity and advertising tends to be as much emotive as evidential, with for‐and‐against camps lined up to defend entrenched positions. However, it does seem fair to argue that, while advertising does present a problem in relation to food selection choice, many other issues, such as peer pressure, quality of life, in‐school food services, nearby retail outlets and social class criteria, exacerbate the problem. Thus, easy solutions based on insufficient evidence that have failed to substantiate causal effects between advertising (ostensibly) directed at children and nutrition can be seen as inequitable and, thus, ineffective in their intended aims. Although here the paper considers the problem from a New Zealand perspective, the findings may have implications for research elsewhere in the world.     

U.S. sweeteners: Combating excess consumption with an excise tax?

Obesity is a public health problem in the United States that has been linked to excess sweetener consumption. The American Heart Association (AHA) recommends no more than 6–9 teaspoons/capita/day, while the U.S. Food and Drug Administration (FDA) recommends 200 calories/capita/day of caloric sweetener consumption. Both recommendations are well below the reported 2016 sweetener consumption levels. We quantify the input tax rates needed to reduce the current excess sweetener consumption level to the AHA and FDA recommended standards. We calculate the joint tax in the United States on two major sweeteners, sugar and High Fructose Corn Syrup (HFCS), to be 31 and 24 cents per pound, respectively, based on the AHA standard, and 19 and 17 cents per pound, respectively, using the FDA standard. These taxes would be roughly the magnitude of the existing sugar and HFCS prices. In both cases, the tax incidence on producers is much smaller than on consumers. Our focus is very different from past studies in that it deals with the effect of taxes on inputs to meet the recommended target rather than a selective tax (sugar‐sweetened beverage tax). If a sweetener tax were implemented, U.S. sugar and HFCS producers would lose US$398–US$489 and US$683–US$844 million per year, respectively.     

肥胖的健康风险及风险控制研究

目的:研究肥胖带来的健康风险及风险控制方法。研究方法:文献资料法、经验总结法、探索性研究法;结论:肥胖者具有较高的健康风险,坚持合理营养、适量的健身运动、健康的生活方式是控制肥胖健康风险的有效方法。     

The price of poverty: The association between childhood poverty and adult income and education in Sweden, 1947–2015

Childhood poverty increases the likelihood of being poor as an adult. We know relatively little about this persistence of poverty in the past and whether it changed as modern welfare societies developed. This study both analyses determinants of childhood poverty and assesses the association between childhood poverty and economic outcomes in adulthood for men and women who grew up in southern Sweden, and who were followed to adulthood regardless of where in Sweden they resided. Poverty is measured in relative terms. Being raised by a single mother, foreign origin, and being raised in a context where the household head was not employed were important risk factors for childhood poverty. Growing up in relative poverty was in turn associated with low income and education in adulthood. Both the persistence and intensity of childhood poverty mattered, and so did the age during which poverty was experienced. Patterns were similar for men and women, and there was no consistent change over time as the Swedish welfare state expanded.