The Bank of England s policy interest rate has remained just above zero for more than two and a half years. Regardless of the government s fiscal policy stance, this interest rate cannot move below zero.

The zero lower bound arises because nominal interest rates cannot fall below zero. But if nominal interest rates stay positive, while inflation is negative, then real interest rates may become too high for an economy in recession, causing recession to become more severe and prolonged.

In Germany, for example, interest rates on public debt up to five years will be negative, and only slightly positive beyond that, producing a weighted average of zero. Clearly, Japan s near zero interest rate environment is no longer unique.

September 11 generated some interest in moving it over to Ground Zero, and I'm totally against that.

Will near zero interest rates, financial sector bailouts, and fiscal stimulus work? What else could be done?

Discussion continues on the possibility of the elimination of tariffs (voluntary or otherwise) in key sectors said to be of export interest to developing countries, or even cutting tariff rates to zero (zero for zero) among a critical mass of key countries.

But real interest rates did not fall enough, because nominal interest rates cannot go below zero. By increasing inflation, the Fed would turn real interest rates seriously negative, thereby coercing thrifty households into spending instead of saving.

But central banks can choose to pay zero interest on a portion of the reserves that commercial banks hold with them, even when they increase the policy interest rate. And they can require commercial banks to hold zero interest reserves at the central bank equal to a defined proportion of their loans, thus preventing inflationary growth of private credit and money.

Equally deleterious to economic health is the recent vogue of cutting interest rates to near zero and holding them there for a sustained period. It is far from clear that near zero short term interest rates (as compared to just low interest rates) have much additional effect in encouraging firms to create jobs when powerful economic forces make them reluctant to hire.

The problem now is that the natural interest rate that is, the liquid safe nominal interest rate on short term US Treasury securities is less than zero. Thus, the central bank cannot push the market interest rate there.

Summers s argument, in a nutshell, is that if the expected profitability of investment is falling, interest rates need to fall to the same extent. But interest rates cannot fall below zero (in fact, they may be stuck above zero if there is a strong desire to build up cash balances).

The world economy today, desperate for demand, can t count on either mechanism. Interest rates in many countries are already near zero.

It is more difficult to deal with than inflation, in part for the technical reason that interest rates can be reduced only to zero. The closer to zero they fall, the more problematic monetary policy becomes.

For example, ordinary citizens could be allowed zero interest transactions balances (up to a limit). Presumably, nominal interest rates would move into negative territory only in response to a deep deflationary crisis.

As Daniel Gros recently pointed out, debt that can be rolled over indefinitely at zero interest rates is no debt at all. This is an extreme example but the closer a fixed interest rate gets to zero, and the longer the maturity becomes, the lower the burden of the stock of debt.

Countries debts undoubtedly play a vital role in the global financial system. But, in a zero interest rate environment, that role must be reevaluated.

As central banks brought policy interest rates down to zero, no one cared that gold yields no interest. So it is nonsense to say that the rise in the price of gold was all a bubble.

Global Zero at Ground Zero

(1) Fome Zero (Zero Hunger Program)

Because the US Federal Reserve and other central banks have driven their short term interest rates close to zero, they cannot lower rates further in order to prevent deflation from raising the real rate of interest. Higher real interest rates discourage credit financed purchases by households and businesses.

The two numbers are zero as in zero footprint or zero oil and scale it infinity.

In fact, real (inflation adjusted) interest rates are hovering around zero throughout much of the world, and have been for more than five years. This is especially true for government borrowing, but corporate interest rates, too, are at record lows.

Like most other central banks confronted with the recession, the SNB has reduced its policy interest rate all the way to the zero lower bound. Once there, traditional monetary policy becomes impotent, as the interest rate tool is no longer usable.

Second, wealth effects are maximized when debt service is minimized that is, when interest expenses do not swallow the capital gains of asset appreciation. That provides the rationale for the Fed s zero interest rate policy but at the obvious cost of discriminating against savers, who lose any semblance of interest income.

It's about zero sum and non zero sum games.

Plunging debt service is largely an outgrowth of the Fed s unprecedented zero interest rate policy. As long as the stock of debt remains excessive, consumers will dismiss the reduction in interest expenses as nothing more than a temporary subsidy from the Fed.

Zero.

The foremost is that if we're blank slates, then, by definition, we are equal, because zero equals zero equals zero.

True, China s economy is now growing robustly and is not likely to face actual deflation anytime soon, but if China does fall into a zero interest rate trap, the PBC, like the BOJ, would be unable to offset deflationary pressure in the event of a large exchange rate appreciation. With short term interest rates locked at zero, pressure for further appreciation would leave the PBC helpless to re expand the economy.

That has been precisely the problem with the aggressive provision of liquidity, quantitative easing, and the reduction of central bank interest rates used to address the current crisis. In today s credit crunch, as in the Great Depression, central banks lend at practically zero interest rates.

Inflation and interest rates in Japan lately have been even lower than in the US. The most important component of Abenomics this year has been the BOJ s efforts to ease monetary conditions further, despite zero interest rates, and thus end the threat of deflation.

Zero is Zero, a little hero of the 21st Century, and Zero can touch so many more people than I possibly could.

Pang Zero

Seven zero.

Either way, your fortunes add up to zero. That's a zero sum game.

The position of debtors was further strengthened by the prohibition of usury charging unreasonably high interest on money. Interest rate caps were abolished in Britain only in 1835 the near zero central bank rates prevailing since 2009 are a current example of efforts to protect borrowers.

QE raises equity prices lowers long term interest rates causes currencies to depreciate and eases credit crunches, even when interest rates are near zero. The ECB and the BOJ did not suffer from a lack of reflationary tools they suffered from a lack of suitable action.

First, the falling price level would raise the real value of the debts that households and firms owe, making them poorer and reducing their willingness to spend. Second, negative inflation means that real interest rates rise, because central banks cannot lower the nominal interest rate below zero.

Moreover, even if prices on average exhibit some downward flexibility, deflation necessarily increases the real rate of interest, given that nominal interest rates cannot fall below zero. The result is an increase in the cost of capital to firms, which lowers investment and exacerbates the crisis.

Investors are buying long term bonds at the current low interest rates because the interest rate on short term investments is now close to zero. In other words, buyers are getting an additional 2 current yield in exchange for assuming the risk of holding long term bonds.

Zero. Very good.

Period. None. Zero.

Germany s Zero Hour

But, provided that the returns are positive, such investments are still worth making. Given near zero interest rates and idle workers, it is time for the state to undertake the rebuilding of infrastructure.

They put 180 percent tax on gasoline cars and zero tax on zero emission cars.