I have decided to give up drinking beer and wine
Since I have decided to give up drinking beer and wine for 9 years, I've realized that my health condition is getting better and better, family is more beautiful, and my productivity at workplace is improving rapidly.
When the individual productivity is improving, the company value added (gross profit) is growing, and the GDP of the country must be increased automatically.
Look at GDP per capita of each country by World Bank: http://data.worldbank.org/indicator/NY.GDP.PCAP.CD. Please take a look at Singapore.
It's just my own thoughts!