The second form of residual income, passive income, is often a vital part of wealth creation. There are only so many hours in each day, and when a person trades hours for dollars, there is a maximum amount of income that person can earn. For instance, if a person earns a specific amount each hour, there is a limit to how many hours are available to work. Once they reach that maximum amount of time, they cannot earn more money.

The problem with MLM or network marketing is the “dream”. Recruiters sell you a dream, residual income without work, easy money, every thing that breaths will buy the product or service, you don’t have to sell anything: only change brands (instead of buying your traditional Colgate toothpaste buy the USANA toothpaste, even if it is $5.oo more expensive), Everybody is your prospect, lead. Cold selling, recruiting your family, friends, neighbors, coworkers.
Return on investment is not the same as profit margin. ROI looks at the revenue invested in the company and the returns gained or lost on that investment based on the department's net profit. ROI can be used to evaluate the functionality of a company's pricing policies, inventory management and investment in capital assets. ROI is also a useful metric when a company must make a decision about major asset purchases, project funding and changes in the investment portfolio.
It's a little awkward, so we'll get straight to the point: This Thursday we humbly ask you to defend Wikipedia's independence. We depend on donations averaging about $16.36, and only ask you for one gift a year. But 98% of our readers in the U.S. are not responding to our messages, and time is running out to help in 2018. If everyone reading this gave $2.75, we could keep Wikipedia thriving for years to come. The price of your Thursday coffee is all we need. People warned us not to make Wikipedia a non-profit. But if Wikipedia were commercial, it would be a great loss. Wikipedia unites all of us who love knowledge: contributors, readers and the donors who keep us thriving. The heart of Wikipedia is a community of people working to bring you unlimited access to reliable information. Please take a minute to keep Wikipedia growing. Thank you.

My dividend portfolio on Motif Investing holds three exchange-traded funds and 10 individual stocks. Just one of the stocks (Ford Motor) has a negative return and the entire fund is up 34% over the past year. Dividend stocks are by far the most passive income investment you can make if you invest in large companies that have stood the test of time.
Residual income is really the best Way of Life. It's a steady, reliable stream of income not directly dependent on the hours you work. Successful investors enjoy such freedom. Successful book authors get paid even when they don't write. The checks just keep coming uninterrupted, even when you relax. This is much better than hourly work. Much better that salaried work. 

A linear income is when you trade your time for money. It’s also known as a work income. The paychecks that you receive are based on the amount of work you do. In this kind of income, you are required to put in hours of work every week. If you stop working, you also stop earning. Hence, linear income requires you to continue working in order to keep earning an income.

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.