In this article, we study how the economic environment for firms in the service sector affects their price adjustments by using a novel dataset from the Services Survey of the Brazilian Institute of Economics from the Getulio Vargas Foundation (FGV). The set of variables from the survey includes...

The Hodrick-Prescott filter is the probably most popular tool for trend estimation in economics. Compared to other frequently used methods like the Baxter-King filter it allows to estimate the trend for the most recent periods of a time series. However, the Hodrick- Prescott filter suffers from...

Widely used convolutions and deconvolutions techniques traditionally rely on the assumption of independence, an assumption often criticized as being very strong. We observe that independence is, in fact, not necessary for the convolution theorem to hold. Instead, a much weaker notion, known as...