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In this paper, I present a simple characterization of the sample selection bias problem that is also applicable to the conceptually distinct econometric problems that arise from truncated samples and from models with limited dependent variables. The problem of sample selection bias is fit within...
Persistent link: https://www.econbiz.de/10013222664
National saving rates differ enormously across developed countries. But these differences obscure a common trend, namely a dramatic decline over time. France and Italy, for example, saved over 17 percent of national income in 1970, but less than 7 percent in 2006. Japan saved 30 percent in 1970,...
Persistent link: https://www.econbiz.de/10012765576
An observed positive relationship between compensation and productivity cannot distinguish between two channels: (1) an incentive effect and (2) worker selection. We use a simplified Becker-DeGroot-Marschak mechanism, which provides random variation in piece rates conditional on revealed...
Persistent link: https://www.econbiz.de/10013060678
The economies of the less developed countries are about to face perhaps the greatest challenge in their histories: generating a sufficient number of jobs at reasonable wages to absorb their rapidly growing populations into productive employment. In terms of absolute magnitude, this challenge has...
Persistent link: https://www.econbiz.de/10013309249
In this paper we discuss the properties of confidence intervals for regression parameters based on robust standard errors. We discuss the motivation for a modification suggested by Bell and McCaffrey (2002) to improve the finite sample properties of the confidence intervals based on the...
Persistent link: https://www.econbiz.de/10013099125
Beginning in May 2009 we fielded a monthly Internet survey designed to measure total household spending as the aggregate of about 40 spending components. This paper reports on a number of outcomes from 30 waves of data collection. These outcomes include sample attrition, indicators of data...
Persistent link: https://www.econbiz.de/10013108000
, (2) to achieve consistent estimates by correcting for endogenous sampling, and (3) to identify average partial effects in …
Persistent link: https://www.econbiz.de/10013085910
A recent literature has developed that combines two prominent empirical approaches to ex ante policy evaluation: randomized controlled trials (RCT) and structural estimation. The RCT provides a "gold-standard'' estimate of a particular treatment, but only of that treatment. Structural estimation...
Persistent link: https://www.econbiz.de/10013073955
We discuss a method aimed at reducing the risk that spurious results are published. Researchers send their datasets to an independent third party who randomly generates training and testing samples. Researchers perform their analysis on the former and once the paper is accepted for publication...
Persistent link: https://www.econbiz.de/10013001788
optimal sampling frequency at which to estimate the parameters of a discretely sampled continuous-time model can be finite … that sampling as often as possible is optimal. But, more surprisingly, we also demonstrate that this is true even if one …
Persistent link: https://www.econbiz.de/10012785227