The GDP answer to monetary policy stimulus is characterized by heterogeneity among different sectors, in terms of intensity and duration. Furthermore, durable goods producer tend to present a faster and intense response while the non durable producer use to react with bigger lags and in a softer way. A conventional lecture assign those differences to a more sensitive demand of durable goods to credit conditions as long as the non durables depends primarily on the work income dynamics, which in turn is less volatile and reacts to monetary policy impulses in a sluggish way. However, there is a serious gap of studies that isolate and quantify the work income channel of the monetary policy transmission mechanism, assaying the well known facts related to the economic business cycle. The purpose of this work is to quantify this mechanism using a VAR framework approach, which allows counterfactuals impulse response functions construction turning off the work income channel of monetary policy transmission of a given closed economy. The first results, using US economy quarterly data from 1980 to 1997, shows that the monetary policy transmission to non durable goods sector depends almost exclusively on the work income channel in contrast to the durable goods sector, which depends in a less exclusively way. Nevertheless, the extended exercise corresponding to an extended data, from1980 to 2004 hints a substantial loss of power explanation of the work income channel.