Globally, debt is generating less and less growth and is getting more and more costly. From John Mauldin at mauldineconomics.com:
Addicted to Debt
Lost Exorbitant Privilege
Trigger Points
Frankfurt, Cleveland, Golf, and Here and There
Is debt good or bad? The answer is “Yes.”
Debt is future spending pulled forward in time. It lets you buy something now for which you otherwise don’t have cash available yet. Whether it’s wise or not depends on what you buy. Debt to educate yourself so you can get a better job may be a good idea. Borrowing money to finance your vacation? Probably not.
Unfortunately, many people, businesses, and governments borrow because they can, which for many is possible only because central banks made it so cheap in the last decade. It was rational in that respect but is growing less so as the central banks tighten their policies.

