Four sources of bias in the Consumer Prices Index (CPI) have been identified. The most discussed is substitution bias …, which creates a second order bias in the CPI. Three other changes besides prices changes create first order effects on a … correctly measured cost of living index (COLI). (1) Introduction of new goods creates a first order effect of new good bias' (2 …

A recent literature has advanced the use of Engel curves to estimate overall CPI bias. In this paper, I show that the … methodology is sensitive to the modeling of household demography. Existing estimates of CPI bias do not account for the changing … effect of household size on budget shares, and this can lead to omitted variable bias. Since the effect of household size on …

theoretically and numerically. Sampled network data systematically bias the properties of observed networks and suffer from non …

In this paper, I present a simple characterization of the sample selection bias problem that is also applicable to the … problem of sample selection bias is fit within the conventional specification error framework of Griliches and Theil. A simple … estimator is discussed that enables analysts to utilize ordinary regression methods to estimate models free of selection bias …

') bias in the estimates and, after due account is taken of this bias, we find that differences due to estimation method are …

and show they behave well in realistic scenarios, correcting the large bias problem of the full sample estimator. We use …