Generating multiple streams of income can have a major impact on your finances. Even an extra income of $500 each month could go a long way towards paying down debt or increasing your investments. We often hear about the importance of diversifying our investments, but diversifying our income streams is just as important, particularly in difficult economic times.
Putting your money into an established franchise business could also be a great source of passive income. Seeing that this type of investment offers a built-in process, wherein and they will mostly help you out in getting started and in its inner workings – even in finding a good location for your business. This allows you to have more free time as an owner.

Earning sources include books, courses, merchandise, coaching, freelancing, speaking, training, selling advertising, and affiliate marketing. For example, a virtual assistant can create tangible or digital products, such as books, courses, and videos that teach others how to be a virtual assistant in the “products” spoke. For services, she can offer additional services, coaching or speaking (i.e., How a Virtual Assistant Can Save Businesses Time and Money). Under other, she can expand her business by bringing on contract virtual assistants and become a manager of a VA company. Not all businesses will be able to come up with ideas for each spoke, but every business should be able to develop extra income streams from their home business idea.

Now, all that said, if capital (savings) grows faster than the growth of the economy, those with savings will see their wealth grow at a faster rate than those who rely on the growth of their income. While this is not an extension of Piketty's argument (you can't take an idea that applies to a population and a whole economy and boil it down to the individual like this), it's not an unreasonable conclusion to take and apply to your own life. (Piketty does talk about this on an individual level, but says it's more impactful for billionaires vs. millionaires – though we have limited data into individuals)
With $200,000 a year in passive income, I would have enough income to provide for a family of up to four in San Francisco, given we bought a modest home in 2014. Now that we have a son, I'm happy to say that $200,000 indeed does seem like enough, especially if we can win the public-school lottery to avoid paying $20,000 to $50,000 a year in private-school tuition.
Portfolio income can come from multiple sources – interest/bond coupons, stock dividends, financial strategies including derivatives and capital growth.  Each offers some cash flow and some also offer potential capital gain with some risk from liquidity and volatile prices.  In this low-yield environment, many investors rely too heavily on cash flows and to pursue this are venturing further into riskier areas than they’d normally consider.