Distribution of family income - Gini index measures the degree of inequality in the distribution of family income in a country. The more nearly equal a country's income distribution, the lower its Gini index, e.g., a Scandinavian country with an index of 25. The more unequal a country's income distribution, the higher its Gini index, e.g., a Sub-Saharan country with an index of 50. If income were distributed with perfect equality the index would be zero; if income were distributed with perfect inequality, the index would be 100.
One of the most enjoyable ways to make more money is to turn your hobby into a paid side project – this way, you spend your spare time doing something you love whilst contributing towards your financial goals. There are plenty of different ways to convert your passion into cash, whether you turn it into a service or use it to make a sellable product. If your hobby is knitting, for example, you can sell your creations online through sites like Etsy or at local craft fairs. Equally, if you love animals, why not offer a local dog-walking service?
1. The batting cage idea is very risky. I’ve seen many of them close over the years and it is not anything close to passive income if you want to keep the business going. You have to continually promote it and target youth leagues, coaches, schools etc to catch all of the new players who grow up and want to play. I’ve played at probably 8 batting cages over the years and 7 of them closed.
When withdrawing money to live on, I don’t care how many stock shares I own or what the dividends are – I care about how much MONEY I’m able to safely withdraw from my total portfolio without running out before I die. A lot of academics have analyzed total market returns based on indices and done Monte Carlo simulations of portfolios with various asset allocations, and have come up with percentages that you can have reasonable statistical confidence of being safe.

The engineering industry of India includes its growing car, motorcycle and scooters industry, and productivity machinery such as tractors. India manufactured and assembled about 18 million passenger and utility vehicles in 2011, of which 2.3 million were exported.[179] India is the largest producer and the largest market for tractors, accounting for 29% of global tractor production in 2013.[179][180] India is the 12th-largest producer and 7th-largest consumer of machine tools.[179]

This is an interesting take and good advice for those who probably do not need to ever worry about becoming destitute. I’m sorry but too many of your options including your own list of income require quite a bit of initial investment/capital and these suggestions are useless to those living paycheck to paycheck. I’d like to see the average low to middle income household purchase additional property for rental, invest in their portfolio (if they can even start one), or even afford to have a vehicle or room to rent. Far too first world of a solution for the general public.
Think about it.  If you are saving for retirement, you are trying to save enough in investing to generate enough income to replace your primary salary.  Let’s take my friend’s example above: $50,000 a year.  To generate $50,000, you would need to have almost $1,700,000 saved, and be able to generate a 3% cash flow on that money (which is reasonable if invested in dividend paying stocks).
Awesome article…if this does not give somebody a clear roadmap, they probably were never going to get there in the first place! I’m kind of like you trying to figure out where to place “new” money and maturing CD’s in this low interest environment. Rates have to go up eventually…I dream of the days again where you can build a laddered bond portfolio paying 8%. I plan for a 5.5% blended rate of return, with big downside protection.
Obviously, these are much higher than you’re going to get with most other investments. What’s more is that you can choose a plan that matches your investment strategy, whether your goal is Supplemental Income, Balanced Investing, or Long-term Growth. You can also look at different real estate projects and choose for yourself which ones to invest in.

I knew I didn't want to work 70 hours a week in finance forever. My body was breaking down, and I was constantly stressed. As a result, I started saving every other paycheck and 100% of my bonus since my first year out of college in 1999. By the time 2012 rolled around, I was earning enough passive income (about $78,000) to negotiate a severance and be free.
Investing in rental properties: Another form of real estate investment, rental investments (i.e. becoming a landlord) could steer you down the passive income path of steady monthly rent checks that you can use to pay off a mortgage loan on the rental property. After the mortgage is paid off, those monthly checks go right into your bank account -- potentially for years to come. 

I remember years ago when one of the members of an FB group I joined talked about how he got offered a deal by a popular local car accessories store. In exchange for monthly discounts and freebies, he agreed to placing the store’s name and emblem on his car (via car wrap sticker). So pull out your thinking hats and get creative! Who knows, you might just land a sweet deal.

Once I started blogging and connecting with other bloggers in the personal finance space, I saw how much potential was out there. And honestly, how much money some bloggers were making really shocked me. I distinctly remember one blogger telling me his website was making $30,000 per month….and this was 2009! To say this blew my mind is an understatement of epic proportions.
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Investing in coins and collectibles: Buffalo nickels and Spiderman comic books are good examples of coins and collectibles that can rise in value, and thus offer opportunity for passive income investors. You'll need to get up to speed on the value of any coin or collectible under consideration, but once you do so, you're on the way to price appreciation on a commodity you'll be paying a lower price to buy, and will garner a higher price when you sell.
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.
If you have a knack for teaching and if you are an expert in some subject, you can become a tutor online for students. There are tons of websites like TutorVista or Tutor.com where you can try out this. You would need a great internet connectivity for this. It can work best for someone who is ready to work late in nights as many students from US and Canada would be right fit for you then.
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.