というIMF論文をMostly Economicsが紹介している。原題は「Updating Inflation Weights in the UK and Germany during COVID-19」で、著者は同基金のFrancesco GrigoliとEvgenia Pugacheva。 以下はその要旨。 The COVID-19 pandemic altered consumption patterns significantly in a short period of time. However, official inflation statistics take time to reflect these changes in the weights of the CPI consumption basket. Using credit card data for the