In microeconomic analysis functions with diminishing returns to scale (DRS) have frequently been employed. Various properties of increasing quasiconcave aggregator functions with DRS are derived. Furthermore duality in the classical sense as well as of a new type is studied for such aggregator...

In this paper we analyze whether people who spend money on experiences rather than material things are more satisfied. Previous psychological studies have several drawbacks, and therefore their results might be biased and unreliable. Trying to avoid these drawbacks in this research we use...

n this paper we analyze whether people who spend money on experiences rather than material things are more satisfied. Previous psychological studies have several drawbacks, and therefore their results might be biased and unreliable. Trying to avoid these drawbacks in this research we use...