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How to become rich: Nine golden personal finance rules that may help you make money
According to Ashish Aggarwal, MD, Acube Ventures, anything that expands at a compound rate, including the population, macroeconomic data, charges, or debts, may be subject to the Rule of 72. The economy is predicted to double in 72 / 4% = 18 years if the GDP expands at a rate of 4% per year.