While some have degraded the meaning of passive income with cheesy ,get-rich-quick type schemes, it doesn’t mean getting something for nothing. Whether it is investing hard earned capital, sweat, time, or providing a service such as housing, there is a lot given to create passive income. Each party provides something of high value, even if the end product means simply buying income property.

Rentals, just like stocks, throw off cash. With rentals we call that cash “rent”, and with stocks we call it dividends. A significant difference however is that the S&P 500 has appreciated at ~6% per year (above inflation) for the last 100 years…..Real Estate has had almost 0 growth above inflation. So are rents higher than dividends? Maybe, maybe not. But unless you got one heck of a deal, the delta in rent over dividends will have a very tough time making up for the 6% per year difference in appreciation.
When you create residual income, you are taking a step towards making extra money in a manner that does not require constant effort. The stream of income is actually generated from something specific; a specific effort that you put forth to create the stream of income opportunity in the first place. Residual income is not always a passive manner of making money.

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.