Can you risk it?

My great aunt had a way with words. Among her best quotes are, "Love is good, but money's better," "Love don't pay the rent," and "Don't marry a man if he don't have a key to something." (Great advice on all fronts.) Once, my sister told her about a guy she'd started dating, and my aunt wanted know if the guy was trustworthy. Instead of asking, "Do you trust him?," she said, "Can you risk him?"

She wasn't all wrong in correlating risk and trust. It's hard to trust the market, since you know it flucurates so much, so it all comes down to how much you stomach.

The first thing to know and remember like your own name is that there is no such thing as a risk-free investment. (Although U.S. Treasuries are called "risk-free" because they are backed by the government, their value is still at risk of being eaten away by inflation. And, it doesn't seem all that possible, but the government could default one day.)

So, if anyone ever offers you an investment opportunity that has "no risk," RUN AWAY because it is a scam.

That said, the amount of flucuation you can stomach is known as your risk tolerance. To help determine your level of tolerance, there are a ton of quizzes you can take. A couple of ones that I found legitimate were from Merrill Lynch and Rutgers University. The one from Merrill focuses solely on investment decisions, while the Rutgers one -- since it is actually a study on risk behavior -- is more broad and user-friendly, in my opinion.

Quizzes like these present you with questions that try to get at how much you are willing to lose for the chance of making gains. It may surprise you how much the magnitude of the potential gain matters versus the magnitude of potential loss. (I won't give it away; I'll let you take the quiz and find out for yourself!)

Some general rules/thoughts regarding risk are:

• If you're younger, you can take more risks. This is because of precious time your portfolio will have to recover from market losses. For example, if you'd invested $100 in the market on January 7, 2000, by December 27, 2002, you would have lost almost $41 dollars. Let's say you decided to hold on to those shares instead of selling them at a loss.* By December 28, 2007, you would have recovered your losses.* Holding for a brief period (that, in this example, was a terrible time for the market overall) would not have served you well, but over a longer period of time, you actually gain.
• Small-cap stocks tend to be riskier than medium- and large-cap stocks. This is because small-cap stocks are from smaller companies that are not as established, but have a lot of growth potential. Take Rocky Mountain Chocolate Factory, which operates in malls, primarily, in 40 states, Canada, Japan, and the UAE. This company is growing in different geographies, but since chocolate is not a commodity, its business can flucuate in hard economic times, so this investment would certainly be riskier than one in Hershey, for example, since the latter has been around for 100 years or so and has a strong global presence.
• Women tend to take fewer risks when investing. Common thought holds that women tend to be more risk averse when it comes to investing. Which could mean that a woman's retirement savings will likely be much lower than her male counterpart's. However, loss aversion can be useful. Women may be more inclined to make more thoughtful investment choices than men and stay out of overly risky investments. Some say that if more women were on the boards of banks, the financial crisis would never have happened.
• Stocks tend to outperform bonds. Historically, stocks have consistently outperformed bonds over time. From 1928 to 2012, the S&P 500 beat out ten-year Treasuries by more than 3 percentage points, which could be the difference between making $871 or $564 off of a $100 investment. It's good to have a diversified portfolio of stocks and bonds that complement each other, but stocks tend to have greater upside potential. Since bonds are debt, the bondholders, like a credit card company, are ultimately more concerned with getting their money back rather than what can be made on top of it. Equityholders, on the other hand, do not have to be paid back, so upside is all they can hope for; in exchange for taking on this risk, they get a higher reward. Get rewarded for holding stocks!

Don't be afraid to take risks, but if you don't have the funds to spare, do not risk them at all. It's much more important to pay down high-cost credit card debt than to start investing. But once you're free from that bondage, fly higher into stocks for [potentially] added financial security.

*Source: Google Finance S&P 500 chart.