To figure out the relationship between the federal deficit and interest rates, you have to remember that federal debt is just one category of all the debt in the economy.

There’s also state and local government debt, not to mention consumer debt and corporate debt. In fact, of all the deb...

We must be wise about taking on debt. Like investing, there are rules to it. One thing is sure: Never borrow money to buy a car, electronics, or anything else that goes down in value. But when it comes to more complex things like growing/starting a business, investing in real estate, or ev...