"The key question now, of course, is the practical one: what impact do budget deficits have on the economy? Many people assume that all deficits are bad, but that?s not necessarily true. In an economic downturn, when taxpayers get laid off and social expenditures rise, deficit spending can actually be helpful. Even during a period of economic expansion, the government can sensibly decide to run a modest deficit in order to finance education, scientific research, and other areas that the private sector refuses to invest in. Deficits are dangerous when they are used to finance unproductive schemes (such as tax cuts for the rich), and when there?s no end in sight. Investors tend to be wary of such deficits, and demand a higher return for lending their money to the government concerned. The result is that interest rates generally rise, which rattles the stock market and chokes off spending by consumers and firms."
(sorry about the pop-ups) it's from 2 book reviews here.
Note: here
This is probably true if there is no other choice, however, if our government banked a surplus and spent the surplus during an economic downturn we would be more economically secure because we would be less subject to interest rates and the vagaries of the world financial markets at the time. Debt to GDP ratio is still the most important indicator of our economic security regardless of the positive spin Paul Martin puts on his glorious, though practically meaningless achievement, of a lower 'deficit to GDP' ratio.
One problem with using high interest rates to try to control inflation (which is not caused by public debt but by private debt) is that it punishes the people who have already participated in the economy when interest rates were low(er). This was seen when in the early 80s peoples' mortgages came up for renewal and were surprised to face mortgage rates of 20%. Many lost their homes due to this reason.
I like Paul Hellyer's ideas about controlling inflation (which is really about managing the economy); namely, the idea of using the Bank of Canada to use private bank reserve requirements to control access to credit and by increasing minimum payments on new credit card debt. He has many other good ideas resulting from good economic analysis and his books are worth reading.
Paul Krugman sounds like an interesting read as well.