Future of Money

Money Minded: How to Psychoanalyze the Stock Market

What makes investors do the wrong thing, all together, pretty much all the time?

There's just no nice way to say it: You're stupid with your money. You may fancy yourself a shrewd investor, but if you have normal human instincts—if you stand up and cheer at sporting events, if you follow the crowd toward the exit at the theater—then you have the instincts that make investors alternate between delirious greed and inconsolable fear. Like most of your peers, you are wired to buy high and sell low, and that's why Richard Peterson is about to become one very rich psychiatrist.

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Where Is Your Money?

In our all-digital economy, only the computer knows

Once upon a time, when banks observed the gold standard, every dollar was backed by an equal amount of metal. Put simply, your money was in the vault. But now cash is all most people ever get to hold, and as the dollar goes digital, the only tangible vestige of your wealth will soon be the computer that keeps track of it. So where is your money today?

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Anti-Counterfeiting Around the World

All across the globe, experts are devising high-tech methods to combat counterfeiters. See which world currencies are most impervious to fraud and why in our gallery of bills

Anti-Counterfeiting Around the World:
In the United States alone, there's at least $70 million in fake currency floating around. Fortunately as the technology counterfeiters use improves, so does that of the bills. Color-changing ink, special polymers and holographs are just some of the innovative technologies incorporated into today's banknotes. In 2007, the International Association of Currency Affairs picked the best new counterfeiting technologies and tactics.

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December 2009: Best of What's New

In our December issue, Popular Science names the 100 best innovations of the year: bombproof wallpaper, self-parking cars, the fastest helicopter, and 97 more. Plus inventor profiles and videos.

Check out the best of what's new here.

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