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There has been significant media attention on the issue of childhood obesity, leading policymakers to reform the … nutritional content maps into obesity outcomes, using panel data on a nationally representative cohort of children, tracking them … participation in the school lunch program leads to weight gain, as measured by changes in obesity, overweight, and BMI. These …
Persistent link: https://www.econbiz.de/10014287388
estimates of obesity rates …
Persistent link: https://www.econbiz.de/10012458737
This paper develops a method to correct for non-random measurement error in a binary indicator of illicit drugs. Our results suggest that estimates of the effect of self reported prenatal drug use on birth weight are biased upwards by measurement error -- a finding contrary to predictions of a...
Persistent link: https://www.econbiz.de/10012473430
Smoking and obesity are the two leading causes of preventable deaths in the United States. Because smoking is subject … to heavy government intervention, understanding the effect of smoking on obesity is important in determining the extent …. Our preferred estimate suggests reduced smoking accounts for 6% of the concurrent rise in obesity …
Persistent link: https://www.econbiz.de/10012814476
This paper is the first to use the method of instrumental variables (IV) to estimate the impact of obesity on medical … weight as a natural experiment, yields estimates of the impact of obesity on medical costs that are considerably higher than … the correlations reported in the previous literature. For example, obesity is associated with $676 higher annual medical …
Persistent link: https://www.econbiz.de/10012462190
This paper is the first to use the method of instrumental variables to estimate the causal impact of youth obesity on U … the BMI of the child's biological mother. IV estimates indicate that obesity raises annual medical care costs by $1 …,354 (in 2013 dollars) or 159%, which is considerably higher than previous estimates of the association of youth obesity with …
Persistent link: https://www.econbiz.de/10012455000
To address the well-established large-sample invalidity of the +/-1.96 critical values for the t-ratio in the single variable just-identified IV model, applied research typically qualifies the inference based on the first-stage-F (Staiger and Stock (1997) and Stock and Yogo (2005)). We fully...
Persistent link: https://www.econbiz.de/10014437024
The ISCHEMIA Trial randomly assigned patients with ischemic heart disease to an invasive treatment strategy centered on revascularization with a control group assigned non-invasive medical therapy. As is common in such "strategy trials," many participants assigned to treatment remained untreated...
Persistent link: https://www.econbiz.de/10015171697
Landmark results from the Women's Health Initiative trial showed that random assignment to menopausal hormone therapy (MHT) elevated risks of breast cancer and other adverse events. Recent analyses argue that MHT risks are small. These analyses report intention-to-treat (ITT) effects, ignoring...
Persistent link: https://www.econbiz.de/10015398088
We provide simple tests for selection on unobserved variables in the Vytlacil-Imbens-Angrist framework for Local Average Treatment Effects (LATEs). Our setup allows researchers not only to test for selection on either or both of the treated and untreated outcomes, but also to assess the...
Persistent link: https://www.econbiz.de/10013334508