Coarsening Bias: How Coarse Treatment Measurement Upwardly Biases Instrumental Variable Estimates
نویسنده
چکیده
ing from the noise, potential outcomes are thus Yit=Yi0+0.05t = 0.4+0.05I(t ≥ 11). Inboth cases, the standard IV assumptions (A1-A5) hold. However, the strong exclusion restriction(A5*) only holds for the single jump CRF.
منابع مشابه
Biases in twin estimates of the return to schooling
Recent within-twin estimates of the return to schooling that use instrumental variables to correct for measurement error are considerably higher than existing estimates. This paper extends Griliches’ [Griliches (1979) Sibling models and data in economics: beginnings of a survey, Journal of Political Economy 87, S37–S64]. analysis of sibling or twin estimates of the return to schooling to show t...
متن کاملTowards a reliable categorical regression analysis for non-randomly coarsened observations: An analysis with German labour market data
In most surveys, one is confronted with missing or, more generally, coarse data. Many methods dealing with these data make strong, untestable assumptions, e.g. coarsening at random. But due to the potentially resulting severe bias, interest increases in approaches that only include tenable knowledge about the coarsening process, leading to imprecise, but credible results. We elaborate such caut...
متن کاملAlcohol consumption, beverage prices and measurement error.
OBJECTIVE Alcohol price data collected by the American Chamber of Commerce Researchers Association (ACCRA) have been widely used in studies of alcohol consumption and related behaviors. A number of problems with these data suggest that they contain substantial measurement error, which biases conventional statistical estimators toward a finding of little or no effect of prices on behavior. We te...
متن کاملBorrowing Constraints and the Returns to Schooling
To a large degree, the expansion of student aid programs to potential college students over the past 25 years in the United States has been based on the presumption that borrowing constraints present an obstacle to obtaining a college education. Economists and sociologists studying schooling choices have found empirical support for college subsidies in the well-documented, large positive correl...
متن کاملEffect of Bias in Contrast Agent Concentration Measurement on Estimated Pharmacokinetic Parameters in Brain Dynamic Contrast-Enhanced Magnetic Resonance Imaging Studies
Introduction: Pharmacokinetic (PK) modeling of dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) is widely applied in tumor diagnosis and treatment evaluation. Precision analysis of the estimated PK parameters is essential when they are used as a measure for therapy evaluation or treatment planning. In this study, the accuracy of PK parameters in brain DCE...
متن کامل