Official statistics measuring the cost of living are known to suffer from several biases because they often do not accurately capture substitution patterns, product entry/exit, and preference shifts. In particular, the latter two biases have been shown to be large on average. This paper shows...

Using a novel dataset from a large supermarket retailer in a European country that never engages in temporary sales, we establish that prices are actually as sticky as regular prices. Circumventing the debate on whether sales have to be included or excluded from price adjustments, we find...

The study examines challenges to monetary policy transmission, focusing on the National Bank of Ethiopia's (NBE) price stabilization policies. The NBE's monetary policy framework aims to maintain price and exchange rate stability while supporting economic growth. However, controlling the broad...

In this paper, we examine the trends in the CPI and the core part of the CPI to bring out a grievous error in the core CPI. The core in certain years shows a jump of as much as 7% in certain quarters due to the error in the way the rent prices are computed. During the periods following the Pay...

This paper proposes a statistical model and a conceptual framework to estimate inflation volatility assuming rational inattention, where the decay in the level of attention reflects the arrival of news in the market. We estimate trend inflation and the conditional inflation volatility for...

Inflation-targeting central banks around the world often state their inflation objectives with regard to the consumer price index (CPI). Yet the literature on optimal monetary policy based on models with nominal rigidities and more than one sector suggests that CPI inflation is not always the...

This study investigates the responses of consumer price index (CPI) to crude oil priceshocks in the pre- and post-2008 global financial crisis. The study used the StructuralVector Autoregressive model to analyse monthly data from 2000M01 to 2019M12.The impulse response analysis showed that for...

Monitoring and forecasting price developments in the euro area is essential in the light of the second pillar of the ECBu0092s monetary policy strategy. This study analyses whether the forecasting accuracy of forecasting aggregate euro area inflation can be improved by aggregating forecasts of...

This paper examines the degree of price rigidity in Belgian consumer prices, using a large database. As to the observed degree of rigidity, the results reveal a substantial amount of heterogeneity, not only across but also within product categories. While prices turn out to be perfectly flexible...

If a consumer wishes to protect her retirement account from the risk of price changes in order to sustain a stable standard of living, then what price index should the account be indexed to? This paper constructs a dynamic price index (DPI) that answers this question. Unlike the existing theory...