It’s important to understand that residual income doesn’t have the same meaning for equity valuation as it does for personal finance. That’s because it doesn’t entail leftover cash, or so-called disposable income, but it has to do with the income that a company generates, after accounting for capital costs, according either to CAPM (Capital Asset Pricing Model), or APT (Arbitrage Pricing Theory). In other words, residual income valuation is the money the company is likely to be left with, once it covers opportunity costs (or risk costs), relative to the book value of Shareholders’ equity. Bear in mind that firms have no legal obligation to compensate shareholders, like they do for bondholders. However, without this form of compensation for the risk they’re taking with their investment, it’s unlikely they will attract investors. Here’s all of the above, laid out in a plain math formula:
Whether you know how to flawlessly apply eye makeup or build a wooden shelving unit, you can create an online course or video for others to follow. Websites like Udemy and Teachable allow you to build a course, such as how to learn a new language or write a cover letter. Once you build your course and set the price, there’s little work to be done. You’ll receive residual income from each person who signs up to take your course.

Now, how do you do it? Building a passive income will require some work up front, but choosing a method that plays to your strengths will yield the most success, and it can even become a fun hobby! Have an aptitude for photography? License your photos to stock photography websites. Or maybe you’ve always wanted to invest? Learn how with a robo-advisor. No matter what your strengths are, we’ve gathered 35 ideas for different ways you can generate passive income and build your wealth.
YouTube brought in nearly $4 billion in estimated ad revenue in 2018. So you can earn a potentially large income by uploading videos to the platform and then watching those ad dollars roll in. You may need or want to upload videos regularly, which isn’t especially passive. But you don’t need to provide a specific product or service directly to customers.

One great way to generate a passive income is through affiliate marketing. Now, this does depend on the size of your list. Yes, size matters when it comes to your list. Especially if you're looking to make some serious money and do it on autopilot. But, list-building takes time. It doesn't happen overnight. And you need to add value to your list or you become obsolete.
Dividends made sense 40 years ago as a relatively simple rule of thumb, but after all the work done by John Bogle with index investing, and academics with Monte Carlo sims and the 4% rule, dividend investing just isn’t the simplest, cleanest way to invest or receive passive income anymore. It’s actually significantly more risky compared to index investing, because dividend companies are a much smaller share of the total global economy compared to the broader indices.

Managerial accounting defines residual income in a corporate setting as the amount of leftover operating profit after all costs of capital used to generate the revenues have been paid. It is also considered the company's net operating income or the amount of profit that exceed its required rate of return. Residual income is normally used to assess the performance of a capital investment, team, department or business unit.
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