December 14, 1998
Allan Crawford - Latest
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May 12, 1998
Measurement biases in the Canadian CPI: An update
The consumer price index (CPI) is used to measure changes in the price level of consumer goods and services. As an indicator of changes in the cost of living, it is susceptible to various types of measurement biases. This article provides estimates of the size of these biases in the Canadian CPI. It concludes that the rate of increase in the CPI probably overstates the rate of increase in the cost of living by about 0.5 percentage points per year. -
Does Inflation Uncertainty Vary with the Level of Inflation?
The purpose of this study is to test the hypothesis that inflation uncertainty increases at higher levels of inflation. Our analysis is based on the generalized autoregressive conditional heteroscedasticity (GARCH) class of models, which allow the conditional variance of the error term to be time-varying. Since this variance is a proxy for inflation uncertainty, a positive relationship between the conditional variance and inflation would be interpreted as evidence that inflation uncertainty increases with the level of inflation. -
Measurement Biases in the Canadian CPI
The consumer price index (CPI) may be an imperfect measure of changes in the cost of living owing to measurement biases known as commodity substitution bias, new goods bias, quality bias and outlet substitution bias. When the sum of these individual biases is positive, the rate of change in the CPI overstates the increase in […]
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