It is always fun (when things are going well!) to look back at the various streams to see what’s working and what’s not. I found that a lot of my angel investing just wasn’t working well, fortunately it wasn’t a lot! Side businesses are always nice, vs. pure investments, because of actual control. Plus you can shut it down if things go south… hard to tell someone (and convince them when you’ve only kicked in a few bucks) that it’s time to close up shop and return some capital.

Maybe you’re obsessed with homemade jewelry and want to sell your wares on Etsy. Or, perhaps you’re well-versed on the Amazon reselling game and want to earn extra cash finding unicorns (rare and valuable products) and reselling them for profit. Maybe you’re obsessed with a specific topic and want to start a blog that can one day bring in advertorial and affiliate income.
Under no circumstances should any information from this blog be used as replacement for professional financial advice. DollarSprout.com is owned by VTX Capital, LLC and neither are licensed by or affiliated with any third-party marks on this website and third parties do not endorse, authorize, or sponsor our content except where clearly disclosed.DollarSprout.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.
I cut back on medicolegal work to free up time and reduce stress. I spend most of my time on medical directorship work and clinical practice. Free time is spent on exercising, travel, time with family, and blogging. I spend virtually no time on the other income streams at this point. Getting the plate spinning can be tough but then the momentum keeps them turning.

In this paper, I examine the idea that the residual income model is superior to the discounted cash flow model. Using a simple numerical example, I show that in a M & M world, the two approaches to valuation are equivalent. In practice, the choice between the two valuation methods will be determined by the ease with which the relevant information is available.


ABC International has invested $1 million in the assets assigned to its Idaho subsidiary. As an investment center, the facility is judged based on its return on invested funds. The subsidiary must meet an annual return on investment target of 12%. In its most recent accounting period, Idaho has generated net income of $180,000. The return can be measured in two ways:
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.
For example, writing a book is a passive income stream. You write it once and sell it over and over. The word passive is a little deceptive because you need to market the book. Nevertheless, compared to non-passive sources of income, which you need to do over and over to make money, such as providing a service, passive income streams require less time once they’re created. Other forms of passive income include other written works (i.e., courses), audio or video creations, affiliate marketing, licensing your idea, franchising, or continuity programs (i.e., memberships).
Thus, the residual income approach is better than the return on investment approach, since it accepts any investment proposal that exceeds the minimum required return on investment. Conversely, the return on investment approach tends to result in the rejection of any project whose projected return is less than the average rate of return of the profit center, even if the projected return is greater than the minimum required rate of return.

Making legitimate passive income isn’t as difficult as you might think. Some of the best passive income ideas might take a little time to set up but can start cash flowing within a couple of months and will provide a consistent monthly income for years or more. The most important point is just to get started. You make exactly $0 on the passive income sources you never start.
The idea of the circular flow was already present in the work of Richard Cantillon.[2] François Quesnay developed and visualized this concept in the so-called Tableau économique.[3] Important developments of Quesnay's tableau were Karl Marx' reproduction schemes in the second volume of Capital: Critique of Political Economy, and John Maynard Keynes' General Theory of Employment, Interest and Money. Richard Stone further developed the concept for the United Nations (UN) and the Organisation for Economic Co-operation and Development to the system, which is now used internationally.

Establishing residual income allows you to accumulate wealth faster, have a more flexible lifestyle and maintain a diverse financial portfolio. As with any successful investment, hard work is required. With residual income, however, that work tends to be upfront. Once your revenue stream is established, the work and time involved is significantly lower than active income sources. With residual income, you’ll secure funds for your future, have a better idea of where you stand financially and enjoy peace of mind knowing you’re maintaining lucrative, long-term investments.  
Nobody gets early FI investing in bonds, CD’s, or even stocks unless they make a huge income or are extremely frugal or a combination of both. Paper assets just don’t provide enough returns. Business income can be great but it is typically not as semi-passive as I would like and there is a relatively high failure rate. That is if you can monetize an ideal to begin with. RE investing needs to be higher ranked IMO as a way that the “average guy” can become FI.
We can forecast per-share residual income as forecasted earnings per share minus the required rate of return on equity multiplied by beginning book value per share. Alternatively, per-share residual income can be forecasted as beginning book value per share multiplied by the difference between forecasted ROE and the required rate of return on equity.
ie first you need to haul ass and do something crazy, eg write a quality 20,000 word ebook (insanely not passive hahahah), but then you get to sit back and enjoy seeing PayPal sale messages pop up on your iPhone each morning as sale after sale after sale is made…on an ongoing basis and without any additional work. That’s some seriously Pina Colada flavored passive goodness!
But, you don't need to go further than that. You can simply write it and publish it and collect the income. That's all. Send out a couple emails to your list (if you have one) or post it on social media, and there you have it. Passive income. Now, the amount of income you receive depends on the quality of the book you've written. How well did you craft the message? How targeted was the information to your audience? It counts.

Under no circumstances should any information from this blog be used as replacement for professional financial advice. DollarSprout.com is owned by VTX Capital, LLC and neither are licensed by or affiliated with any third-party marks on this website and third parties do not endorse, authorize, or sponsor our content except where clearly disclosed.DollarSprout.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.


Amazing article Jim. Jammed packed with great information and inspiration for a finance blogger looking to find ways to diversify income streams. Building up your capital, achieved through saving more than you earn as you described, will open doors to a lot of activities in the future. The name of the game is putting your savings to work to turn expenses and idle cash into income producing assets. It isn’t easy when you are starting from $0, but through discipline and time you will eventually be able to achieve your goals and begin using the methods you described to diversify your income streams.
This is not to say that the circular flow diagram isn't useful in understanding the basics of an economy, such as leakages and injections. However, it cannot be ignored that the economy intrinsically requires natural resources and the creation of waste that must be absorbed in some manner. The economy can only continuing churning if it has matter and energy to power it and the ability to absorb the waste it creates. This matter and low entropy energy and the ability to absorb waste exists in a finite amount, and thus there is a finite amount of inputs to the flow and outputs of the flow that the environment can handle, implying there is a sustainable limit to motion, and therefore growth, of the economy.[18]

While residual income can be used to describe the amount of net income after all costs are paid down, it also refers to the amount of money you continue to generate after your initial work is done. There are countless ways to make money, but some are much more time-intensive than others. Active income, for example, refers to when you directly act or perform a service for money, including salaries, wages, tips, commissions, and income from a business you’re actively involved with.
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Residual income can have two different definitions or applications. The first definition, a less common application of residual income, is the money that is left after monthly debts are paid. This calculation is particularly important when a person is seeking financing or a loan based on their income and available money to cover the additional debt. In this scenario, the residual income is calculated by this formula:
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