As national restrictions to fight the COVID-19 pandemic crisis were progressively lifted in the first half of 2021, the above reported countries have been experiencing positive economic growth and some inflation, in particular in Germany and the US. The average price level in OECD countries has increased by 1.31 percent relative to 2021-Q2 and by 4.36 percent relative to 2020-Q3. According to the OECD economic outlook, inflation is going to exceed 3 percent towards the end of the year, and it is going to stabilize between at 2.3 percent from 2022. This prediction is based on the expectation that economic activity will gradually transit towards normalcy.