How does wealth affect consumption?

http://www.stat.ee/759627
Märt Leesment

Quite often, money is used as the measure of wealth. Consumer demand has a direct impact on supply, i.e. the activity of entrepreneurs. Thus, it is good to understand the correlation between consumption and economic development, whether and how wealth affects the consumption of goods and services and how the consumption pattern is related to both the economic development of countries as well as the wealth of their households.