Do overweight and obesity prevalence rates converge in Europe?

We exploit recently published data to evaluate the long-run evolution of overweight and obesity rates among European economies between 1975 and 2016. We find that overweight rates for both females and males converge in Europe. In particular, the convergence is driven by the nations in the EU. This fact is consistent with food patterns as well as trade, agricultural, and health policies that are common among EU members. Across our model specifications, the steady-state average overweight rate ranges between 60% and 77% for European female individuals and lies above 82% for their male counterparts. Confidence intervals suggest that such gender differences are statistically significant. In the EU, the point estimates of these rates are 62% and 91%, respectively. Obesity prevalence in Europe would reach long-term rates of 39% and 45% for females and males respectively, whereas these rates would be similar in the EU (approximately 28%).     

Vertical transmission of overweight: Evidence from a sample of English adoptees

Vertical influences can significantly shape children overweight by affecting both genetics and the environment children are exposed to. This paper examines the vertical (parental) transmission of child overweight drawing upon a fifteen year sample of English adults and their children, both adopted and biological, for which we can retrieve clinical measures height and weight. We find that, when both parents are overweight, children exhibit an increased likelihood of overweight, irrespective of whether they are adopted or biological children. When both parents are obese as opposed to overweight the picture is different. We find that the likelihood of child overweight increases by 16.7 percentage points among natural (non-adopted) children but only by 4.5 percentage points among adopted children. This suggests that the transmission of overweight when both parents are obese is not merely genetic, and what has been called vertical or parental transmission plays a non-negligible role. Our findings are validated by are a battery of robustness checks.     

Fast-food consumption and body weight. Evidence from the UK

This work examines the role of fast-food consumption on body weight in the United Kingdom, by means of two recent waves from the British Household Panel Survey. We use quantile regression to examine whether increases in consumption of this unhealthy food category affect differently individuals located at selected quantiles of the body mass index distribution. Our results support some findings in the literature, but also point to new conclusions. Quantile regression estimates suggest that fast-food consumption affects individuals with higher body mass index more heavily, especially women. Irrespective of gender, we also find a negative and significant correlation between the price of take-away meals and snacks and weight. Some policy implications are discussed on the basis of our main results.     

特殊条件下弹药汽车运输超重装载理论研究

针对弹药装载容易出现的超重装载情况,调研了弹药包装质量密度的分布,讨论了汽车超载时的危害,从理论上研究了在特殊条件下弹药汽车运输超重装载的可行性与最大限额。     

THE ECONOMIC CAUSES OF OBESITY: A SURVEY

Abstract.  Obesity rates have increased dramatically over the last 30 years. Rising obesity has developed into a considerable worldwide public health problem with significant economic and social consequences. Accordingly, obesity has become a subject of economic research. This paper provides a broad survey of the recent and growing economic literature on the causes of obesity. The literature, both theoretical and empirical, overall aims to explain the rising obesity trend and to identify the factors that contribute to obesity. Also surveyed are non-economic causes and consequences of obesity and the interconnection with economic influences. An understanding of the causes of obesity allows policies to be considered that might stem the global increase in obesity.     

Migration and the overweight and underweight status of children in rural China

The rapid economic growth in China is accompanied by a large scale rural-to-urban migration, but over time more children are left behind rural areas. This paper studies how the overweight and underweight status of the rural children is associated with the out migration of others in their household. We find that migration is related to different nutritional outcomes for the left-behind children. The older children (aged 7–12) are more likely to be underweight; the younger (aged 2–6) are less likely to be overweight if left behind without the care of a grandparent. We also find evidence that the remaining adult household members spent less time preparing meals, whereas older children take up more household chores.     

The effects of nutritional labels on obesity

This study examines the relationship between nutritional label use and obesity using switching regression. Results for treatment effect show that nutritional labels play a role in reducing obesity among users of nutritional labels, notably among women. The average body mass index (BMI) for men who read nutritional labels is 0.12 point lower than men who do not read them, while women who are users of nutritional labels have 1.49 points lower BMI than women who do not read labels. These findings imply that health education campaigns can employ nutritional labels as one of the instruments for reducing obesity.     

Maternal full-time employment and overweight children: Parametric, semi-parametric, and non-parametric assessment

We use the matched mother-child data from the 2000 wave of the US National Longitudinal Survey of Youth 79 (NLSY79) to assess the impact of full-time working mothers on children’s body mass index (BMI) and the likelihood of becoming overweight. Parametric, semi-parametric and non-parametric methods are employed to correct the bias of selection on observables and unobservables. Pros and cons of various methods are discussed and specification tests are conducted. In general, we find that a mother’s full-time employment does have some impact on her children’s BMI and likelihood of becoming overweight across models and inference procedures.     

Mother’s nutritional label use and children’s body weight

In spite of a growing body of literature studying the determinants of children’s obesity, relatively little is known about the association between parental nutritional label use and children’s body weight. To bridge this gap, this study examines the effect of mother’s nutritional label use on children’s body mass index and overweight. Using data from the 2001 National Health Interview Survey in Taiwan, a two-stage econometric model is proposed and estimated with a semiparametric method. Results indicate that mother’s nutritional label use leads to lower probability of children becoming overweight or obese, and a non-linear relationship between mother’s nutritional label use and children’s BMI is evident. For mothers who seldom use nutritional labels, label use does not lead to a reduction in children’s BMI. In contrast, for mothers who are frequent nutritional label users, label use contributes negatively to children’s BMI. However, the magnitudes of these effects are relatively small, suggesting that additional instruments or policies are needed if further reduction in children’s body mass index is desired.     

THE CAUSES OF CHILDHOOD OBESITY: A SURVEY

Childhood obesity rates are rapidly rising in many countries. Because it is highly likely that obesity will persist into adulthood, current rates undermine the health and future of people in developed as well as developing countries. This public health epidemic carries significant economic, social as well as individual‐level consequences and has become a research topic of significant interest in various disciplines including economics. We survey the literature in economics and related disciplines associated with the causes of childhood obesity and synthesize the results to provide a better understanding of the explanations for the rising childhood obesity rates. This is an important step in crafting effective policies to combat global childhood obesity trends.