Does saving money lead to happiness? Does this relationship hold for all countries? Using the WVS dataset, run a regression equation using HAPPY as the dependent variable and three independent variables: SAVING, COUNTRY2CAT, and the interaction between these two variables.

Describe your results by calculating predicted percentage happiness for four examples:

■ a Western country where no one saves

■ a Western country where 60% of the country saves

■ an East Asian country where no one saves

■ an East Asian country where 60% of the country saves.