Maritime trade was carried out extensively between South India and Southeast and West Asia from early times until around the fourteenth century AD. Both the Malabar and Coromandel Coasts were the sites of important trading centres from as early as the first century BC, used for import and export as well as transit points between the Mediterranean region and southeast Asia.[60] Over time, traders organised themselves into associations which received state patronage. Historians Tapan Raychaudhuri and Irfan Habib claim this state patronage for overseas trade came to an end by the thirteenth century AD, when it was largely taken over by the local Parsi, Jewish, Syrian Christian and Muslim communities, initially on the Malabar and subsequently on the Coromandel coast.[61]
Retirees are paying a high price as the world stimulates its way out of the GFC (Great Recession).  After a 30-year bull market to the lowest interest rates the world has ever seen, bonds have become highly priced and now don’t generate enough to meet income needs.  Just 5 years ago the average income from $100,000 invested in a 10 year Australian Government Bond (10yrs) was $5,600 p.a.  – now it’s less than half at $2,600 p.a.
This is another way of ensuring regular income for a period of time. Let us say, you are uncomfortable with the idea of investing in high dividend yield stocks as they generally do not give price appreciation. Also, there is no assurance on dividend yields as dividends may fall if the profits of the company fall. Another way out is to invest the money into a debt fund and pay yourself through an SWP. Let us assume that you did the same SIP and ended up with Rs.1.41 crore at the age of 45. Now you want to pay yourself a regular income for a period of 15 years till your retirement. Here is how it will work.
Coaching – I’ve been coaching ever since I was in college and I love it. And since I coach a club team, the time commitment averages only about 10 hours a week. The money isn’t great if you depend on it for living but it’s the perfect secondary source of income since it’s very easy for me to get hired as a coach(and it’s tax free through business deductions).
Everything passive first takes active energy. The time to put in the effort is when we are young and not ravaged by disease or burdened by family obligations. I remember being able to snowboard from 9am until 4pm every day for a year. Now, I’m lucky to last from 11am until 2pm without wanting to go to the hot tub and drink a bucket full of beer! If we can appreciate how lucky we are when we are young, we’ll be able to maximize our vitality and live financially freer when we are older.
If you have a blog or other type of site, you can build affiliate links to different services on the website. Many people use Amazon as an affiliate partner. For example, if you are a beauty blogger writing about different products, you can set up Amazon affiliate links on your blog so that whenever someone buys the product you mention on Amazon, you receive a percentage of the sale. Amazon is not the only affiliate partner out there. Here is good, in-depth information on affiliate marketing. 
OK, I know what you're thinking — maybe you're not a writer. However, as Tamez says above, chances are, you're an expert sy ~something~. Also, chances are that other people want to know what you know. So whether you write an eBook on dating or tips on how to fix your car, once you write, self-publish the book, and let it go, it can sit on a site like Amazon and sell itself. Of course, you can market it, too, but that's another story! Some sites let you keep most of the earnings, while others do not.
No one wants to plan for a loss but it is always better to be prepared. US have recently seen a real estate meltdown that has caused the entire economies of the world to go into recession. So, it is very important to foresee such meltdowns and be prepared for losses. A second income source will ensure that you have enough rotational money to see you through losses.
In the runup to the Second World War, the United States had suffered through the Great Depression following the Wall Street Crash of 1929. Roosevelt's election at the end of 1932 was based on a commitment to reform the economy and society through a "New Deal" program. The first indication of a commitment to government guarantees of social and economic rights came in an address to the Commonwealth Club on September 23, 1932 during his campaign. The speech was written with Adolf A. Berle, a professor of corporate law at Columbia University. A key passage read:
​Affiliate marketing is the practice of partnering with a company (becoming their affiliate) to receive a commission on a product. This method of generating income works the best for those with blogs and websites. Even then, it takes a long time to build up before it becomes passive. If you want to get started with affiliate marketing check out this great list of affiliate marketing programs.
One of the easiest ways to get exposure to dividend stocks is to buy ETFs like DVY, VYM, and NOBL or index funds. You can also pay an algorithmic advisor like Wealthfront to automatically invest your money for you at a low fee. In the long run, it is very hard to outperform any index, therefore, the key is to pay the lowest fees possible while being invested in the market. Wealthfront charges $0 in fees for the first $15,000 and only 0.25% for any money over $10,000. Invest your idle money cheaply, instead of letting it lose purchasing power due to inflation. The key is to invest regularly.
The most liquid of the private investments are investing in equity or credit hedge funds, real estate funds, and private company funds. There will usually be 6 month – 3 year lockup periods. The least liquid of the private investments are when you invest directly into private companies yourself. You might not be able to get your money out for 5-10 years, depending on the success of the company and upcoming liquidity events.
An obvious example is over exposure to bank stocks, which have been excellent investments for over a century.  Though a foundation of most portfolios, bank stocks do involve more risk at certain stages of the economic cycle than many realise.  Being less exposed to bank shares in the last few months could have preserved some capital.  So, a more diversified approach can help mitigate some of these risks.