3. Rent - Being a landlord is fabulous. You get rent for the rest of your life on the asset that you have created. This type of income also can grow if your property is good, well maintained. The growing income is a hedge against inflation. If you can earn rent to pay for your living expenses every month, you can be very close to achieving financial freedom!
In equity valuation, residual income represents an economic earnings stream and valuation method for estimating the intrinsic value of a company's common stock. The residual income valuation model values a company as the sum of book value and the present value of expected future residual income. Residual income attempts to measure economic profit, which is the profit remaining after the deduction of opportunity costs for all sources of capital.