In marketing activity, there will always be risk, and marketing being a vital element for an economic entity, and also a dynamic department that must quickly adjust to economy requirements, we consider that a research on them is a challenge and important action in understanding them and possibly...

The main reason why price statisticians might prefer a member of the family of Lowe or fixed basket price indices is that the fixed basket concept is easy to explain to the public. Note that the Laspeyres and Paasche indices are special cases of the pure price concept if we choose the reference...