That in turn, because of the weak marketing system, led to an 80 percent collapse in maize prices in the country.

An important corollary for commodity producing developing countries is that industrial metal prices, which really are leading indicators of economic activity, may well increase after an oil price collapse. In 1986 87, for example, metal prices doubled a year after oil prices fell by half.

NEW HAVEN What brought on the collapse of home prices in 2008 that is the root of the financial crisis now enveloping much of the world?

But the recent collapse in oil prices could change this dynamic. In refusing to cut its own production, Saudi Arabia seems to be hoping that low oil prices will drive down investment in US shale energy, undermining production growth there.

But if owners of oil reserves think that prices will fall in the long run, they gain an incentive to explore for oil and expand production now in order to sell as much oil as possible before the fall. The resulting supply surge drives down prices, reinforces expectations of further declines, and produces the inverse of a speculative bubble a collapse in prices.

At the same time, their actions and similar actions by other bankers are directly responsible for both the run up in housing prices and the damaging collapse that followed. That collapse has impacted non bankers in many negative ways, including through the loss of more than eight million jobs.

As a result, the debtor countries bond prices would collapse, interest rates would soar, and banks would be threatened with collapse. If the contagion from Greece intensified, the next weakest country, probably Portugal, would find itself unable to support its banking system or pay its debts.

In fact, the stock market bottomed out last winter. Markets had factored into share prices the belief that the US government would not allow any more banks to collapse.

Stocks are risky, depressions can happen, and it is dangerous to extrapolate the past to the future. If prices rise simply because investors decide that there is no longer any risk, then prices will collapse all the more precipitously if investors collectively change their minds.

Given that property prices are unlikely to fall by such a large margin, the bubble s collapse would not bring down China s banks. Even if real estate prices fell by more than 50 , commercial banks could survive not least because mortgages account for only about 20 of banks total assets.

If the US tips from mild recession into deep recession, the global deflationary implications will cancel out some of the inflationary pressures the world is facing. Global commodity prices will collapse, and prices for many goods and services will stop rising so quickly as unemployment and excess capacity grow.

The prospect of falling prices reflects the collapse of industrial production, the resulting high level of unemployment, and the dramatic decline in commodity prices. Industrial production is falling at double digit rates in the negative inflation countries, and the price index for all commodities is down more than 30 over the past year.

Collapse

Likewise, the softening of housing prices follows a short period in which prices more than doubled, which makes it difficult to tell whether China is facing a modest and healthy correction or outright collapse. And if continental Europe eventually recovers, as the US and the United Kingdom are, export growth could pick up again.

We had deflation during the Depression, but that was collapse of the money supply, collapse of consumer confidence, a completely different phenomena.

It is naive beyond description to think that having blocked this source of financial collapse, you have blocked all possible sources of financial collapse.

The old bridge is in danger of collapse.

CAMBRIDGE One of the biggest economic surprises of 2015 is that the stunning drop in global oil prices did not deliver a bigger boost to global growth. Despite the collapse in prices, from over 115 per barrel in June 2014 to 45 at the end of November 2015, most macroeconomic models suggest that the impact on global growth has been less than expected perhaps 0.5 of global GDP.

Likewise, short of initiating a major war, Putin has few options for driving up oil prices. Moreover, even before the oil price collapse, crony capitalism had brought growth to a halt and any serious effort to change the system would destabilize his power base.

Global debt has grown some 57 trillion since the collapse of Lehman Brothers in 2008, reaching a back breaking 199 trillion in 2014, more than 2.5 times global GDP, according to the McKinsey Global Institute. Servicing these debts will most likely become increasingly difficult over the coming years, especially if growth continues to stagnate, interest rates begin to rise, export opportunities remain subdued, and the collapse in commodity prices persists.

We hear a lot about the collapse of cod.

The collapse of state institutions exacerbates the conflict's impact.

Russia s economy is now in far worse shape than that of EU members. The collapse of world oil and gas prices has wounded Russia s budget, and lack of investment in the country s energy sector over the years is now causing the declining production that economists have long predicted.

The West may collapse very suddenly.

And then the financial collapse happened.

Jared Diamond on why societies collapse

Why Russia s Economy Will Not Collapse

His regime is bound to collapse.

His regime is bound to collapse.

The prices of primary commodities had declined against the prices of manufactures, especially during the 1980s.

In the recent past, the prices of these products have increased faster than steel prices.

Prices

(b) Average prices must reflect purchases across all types of outlets to provide representative national prices

Indeed, confronted by political leaders hostile rhetoric, oil producers have a strong incentive to increase production in order to lower oil prices to levels that undermine the economic feasibility of alternative energy sources a logical interventionist policy to counter the anti oil interventionist policies of consuming countries. After all, a collapse in oil prices would be a death sentence for several new energy technologies, and, not incidentally, would increase demand for oil.

Each of those times, we were on the verge of complete collapse.

The collapse of moral values and the decline of the family unit.

These may be either the best country prices or perhaps even international prices, but they are not local farm gate prices.

And it's pushing the ecosystem close to collapse.

But the rise of China, the relative decline of the United States, the long boom in commodity prices, and the Western financial collapse of 2008 have created space for political and economic experiments. Chávez took advantage of that opening, and Chávezism may well prove to be a significant phenomenon far beyond its Latin American homeland.

A real estate price crash has also been a key cause of emerging market crises, such as the 1997 98 Asian collapse. Research shows that lost output during recessions accompanied by a housing bust is double or triple what it might otherwise have been had real estate prices held up.

One reason may be the perception that many economists were smugly promoting the efficient markets hypothesis a view that seemed to rule out a collapse in asset prices. Believing that markets always know best, they dismissed warnings by a few mere mortals (including me) about overpricing of equities and housing.

In November, the annual price growth was just 0.3 , while the recent collapse in oil prices will generate further downward pressure in the coming months. Even more important, inflation expectations have started to de anchor forecasters and investors expect the undershooting of the target to persist over the medium term.

The surge in debt enabled demand drove up real estate prices, while banks greater willingness to lend led many people to purchase homes they couldn t afford. The collapse of the subsequent bubble a major contributor to the 2008 global financial crisis nearly tipped the world economy into a multi year depression.

Moreover, a formative experience for many central bankers over the past half decade has been the need to prevent a potential collapse of output, including by preventing prices from falling. They have achieved this goal largely by propping up credit, regardless of what that may do to the banking sector s structure or incentives.

Moreover, if the stimulus succeeds and leads to an early recovery, the additional income gained may more than offset the increase in debt. Given the collapse of commodity prices and excess production capacities, there is no short term inflation danger, even if part of the stimulus is financed directly by central banks.