We document a new stylized fact for the life-cycle behavior of consumer prices: relative to a narrowly defined set of competing products, the price of individual products tends to fall over the product lifetime. This holds true for more than 90% of the expenditure items underlying the U.K....

We present a sticky-price model incorporating heterogeneous firms and systematic firm-level productivity trends. Aggregating the model in closed form, we show that it delivers radically different predictions for the optimal inflation rate than canonical sticky price models featuring homogenous...

This paper derives alternative measures of the short-run NAIRU (SRN) for the UK, the rate for unemployment at which inflation will neither increase nor decrease in the short-run. We estimate the NAIRU jointly with price equations by using the Kalman filter. Our work suggests that both structural...