The Dynamics of Nutrition and Child Health Stocks

Height-for-age (HA) and weight-for-age (WA) of children are standard measures to study the determinants of stunting and short-term underweight. Rather than studying these indicators separately, this paper looks at their interaction and therefore at the dynamics of height and weight. Considering HA a child's health stock and WA nutritional investment, we develop an overlapping generations model. The main features of the model are self-productivity of health stocks and the dynamic complementarity between past health stocks and contemporaneous nutrition. We test the model's predictions on a Senegalese panel of 305 children between 0 and 5 years over three periods. To control for endogeneity and serial correlation we employ different GMM methods. We find evidence of self- productive health stocks and that child health produced at one stage raises the productivity of nutritional inputs at subsequent stages. Our results indicate that child health is quickly depleted and needs constant updating. Simulations based on our estimates show that a positive nutritional shock during the first six months of life is essentially depleted at the age of 2. Consequently, sustainable development and nutrition programs have to be long-term and yield higher returns if they reach babies in the early months of infancy

Gender, ethnicity and teaching evaluations : Evidence from mixed teaching teams

This paper studies the effect of teacher gender and ethnicity on student evaluations of teaching quality at university. We analyze a unique data-set featuring mixed teaching teams and a diverse, multicultural, multi-ethnic group of students and teachers. Co-teaching allows us to study the impact of teacher gender and ethnicity on students’ evaluations of teaching exploiting within course variation in an empirical model with course-year fixed effects. We document a negative effect of being a female teacher on student evaluations of teaching, which amounts to roughly one fourth of the sample standard deviation of teaching scores. Overall women are 11 percentage points less likely to attain the teaching evaluation cut-off for promotion to associate professor. The effect is robust to a host of co-variates such as course leadership, teacher experience and research quality. There is no evidence of a corresponding ethnicity effect. Our results point to an important gender bias and indicate that the use of teaching evaluations in hiring and promotion decisions may put female lectures at a disadvantage

Macroeconomic impacts of Universal Health Coverage : Synthetic control evidence from Thailand

We study the impact of Universal Health Coverage (UHC) on various macroeconomic outcomes in Thailand using synthetic control methods. Thailand is compared to a weighted average of control countries in terms of aggregate health and economic performance over the period 1995 to 2012. Our results suggest that financial protection in Thailand has improved relative to its synthetic counterfactual. While out-of-pocket payments as a percentage of overall health expenditures decreased by 16.9 percentage points, annual government per capita health spending increased by $78. However, we detect no impact on total health spending per capita nor the share of the government budget allocated to health. We find positive health impacts as captured by reductions in infant and child mortality. The introduction of UHC has had no discernible impact on GDP per capita. Our results complement micro evidence based on within country variation. The counterfactual design implemented here may be used to inform other countries on the causal repercussions and benefits of UHC at the macroeconomic level

Universal health coverage at the macro level: Synthetic control evidence from Thailand

As more and more countries are moving towards Universal Health Coverage (UHC), it is important to understand the macro level or aggregate impacts of such a policy. We use synthetic control methods to study the impact of UHC, introduced in Thailand in 2001, on various macroeconomic and health outcomes. Thailand is compared to a weighted average of control countries in terms of aggregate health financing indicators, aggregate health outcomes and economic performance, over the period 1995 to 2012. Our results suggest that UHC helps alleviate the financial consequences of illnesses. The estimated treatment effect of UHC on out-of-pocket payments as a percentage of overall health expenditures is negative 13 percentage points and its effect on annual government per capita health spending is US$79. We detect a smaller effect of US$ 60.8 on total health spending per capita which appears with a lag. We document positive health effects as captured by reductions in infant and child mortality. We do not find any effect on GDP and the share of the government budget devoted to health. Overall, our results complement micro evidence based on within country variation. The counterfactual design implemented here may be used to inform other countries on the macro level repercussions of UHC

Cryptochrome Interacts With Actin and Enhances Eye-Mediated Light Sensitivity of the Circadian Clock in Drosophila melanogaster

Cryptochromes (CRYs) are a class of flavoproteins that sense blue light. In animals, CRYs are expressed in the eyes and in the clock neurons that control sleep/wake cycles and are implied in the generation and/or entrainment of circadian rhythmicity. Moreover, CRYs are sensing magnetic fields in insects as well as in humans. Here, we show that in the fruit fly Drosophila melanogaster CRY plays a light-independent role as “assembling” protein in the rhabdomeres of the compound eyes. CRY interacts with actin and appears to increase light sensitivity of the eyes by keeping the “signalplex” of the phototransduction cascade close to the membrane. By this way, CRY also enhances light-responses of the circadian clock

Are women better police officers? Evidence from survey experiments in Uganda

Can the feminization of public services improve quality and lower corruption? The underlying logic of such efforts is the belief that women have higher ethical standards than men. To answer this question, we examine the links between gender and policing practice using data from twelve vignette cases assessed by 600 Ugandan police officers. Our empirical strategy is based on a randomized framing experiment, which is designed to isolate the effect of gender from institutional factors and social norms. We find that the gender of the police officer depicted in the cases and victim gender are not related to the judgment of police malpractice, nor to suggested disciplinary measures. However, respondent gender matters for the reporting of misconduct and the perception of the official institutional policy of the police. Men are stricter when assessing cases along these dimensions. The results indicate that simply feminizing the police force is unlikely to enhance service quality

Self-help groups, savings and social capital: Evidence from a field experiment in Cambodia

Do self-help groups (SHGs), village-based associations designed to encourage savings, household production and social cohesion among the poor, meet their goals? We examine economic outcomes and the pro-social behavior of 540 households in a randomized control trial (RCT) of a SHG program (randomized at the commune level) in rural Siem Reap, Cambodia using survey data and a rich set of economic and social capital indicators. We measured social capital—defined as social norms and the social networks that support them—with household and network surveys and lab activities that gauge altruism, trust, trustworthiness and the willingness to contribute to public goods. We find that the program successfully increased participation in SHGs and strengthened SHG-related networks. As intended the program significantly increased the number of households with non-zero savings as well as savings levels and it led to a noticeable shift in household production towards livestock. We cannot document increases in household incomes, assets or expenditure. There were also no sizeable wider effects on social capital and networks other than those related to SHGs directly, although we cannot statistically rule out small positive effects in the case of some social capital indicators. In addition to these empirical findings the study provides an example of innovative program evaluation techniques that employed a field experiment, lab-in-the-field behavioral measures, network measures as well as traditional survey measures

Corruption and the extractive industries transparency initiative

The Extractive Industries Transparency Initiative (EITI) has received much attention as a scheme that can help reduce corruption in mineral-rich developing economies. To our knowledge, this paper provides the first empirical attempt (using panel data) to explore how EITI membership links to changes in corruption levels. We also examine whether the different stages in EITI implementation (initial commitment, candidature, full compliance) influence the pace of changes in corruption. We find that EITI membership offers, on the whole, a shielding mechanism against the general tendency of mineral-rich countries to experience increases in corruption over time

Impact of Austria's 2009 trans fatty acids regulation on all-cause, cardiovascular and coronary heart disease mortality

Background: Unhealthy diet, especially consumption of trans fatty acids (TFAs), is a known risk factor for cardiovascular disease (CVD), a leading cause of death in Austria. In 2009, Austria introduced a law regulating the content of TFAs in foods. The aim of this study was to assess the impact of the TFA regulation on CVD-related outcomes.Methods: The study evaluated the TFA regulation as an intervention in a natural experiment. Two study periods were assessed: pre-intervention (1995-2009) and post-intervention (2010-14). The study compared the age-standardized death rates per 100 000 population for CVD outcomes with those of a 'synthetic' international comparator population, created from data of OECD countries where TFA regulation has not been implemented, but where the population is otherwise comparable.Results: There was a continuous decrease in CVD-related mortality throughout the study period in both the synthetic international comparator population, as well as in the adult Austrian population, with no significant change in this trend observed as an effect of TFA regulation.Conclusions: Whilst the results are counterintuitive, given the established link between TFA consumption and an increased risk of CVD, there are many possible explanations: high prevalence of tobacco smoking, changes in TFA content in foods due to international guidance as opposed to formal regulation and a beneficial impact of TFA regulation on sub-groups of the population that might not be detected with nationally aggregated data. However, reduction in TFAs should still be considered an important part of risk factor reduction for CVD and other non-communicable diseases