Gasgard is a country which is going through a historical structural change in its economy. Experts are very confident in stating that the economic situation in Gasgard will not change for the next five or ten years. Lokey, a stockbroker, gives his clients the following advice:

Avoid making any investments in Gasgard stocks (via Heimdal the national stock exchange of Gasgard), because the expected returns of stocks are believed to be below the historical average for the next five to ten years.

Is Lokeys advice sensible? Explain.