Cochrane accuses Krugman of misleading his readers about the efficient market theory, which asserts that, given the available information, financial markets always get asset prices right. Rather than defend that theory, Cochrane admits that asset prices move more than reasonable expectations of future cash flows.

On the contrary, the University of Chicago s Eugene Fama has described the notion that finance theory was at fault as a fantasy, and argues that financial markets and financial institutions were casualties rather than causes of the recession. And the efficient market hypothesis that he championed cannot be blamed, because most investing is done by active managers who don t believe that markets are efficient.

There are smart ways to buy them and to aggregate that purchasing power to bring very efficient vehicles into the market faster.

According to conventional theory, markets tend towards equilibrium, function without any discontinuity in the sequence of prices, and deviations occur in a random fashion. As a result, market risks can be equated with the risks confronting individual market participants.

The God theory is not just a bad theory.

In theory, such banks should be immune to runs, because the interbank market is supposed to be extremely efficient, and risk would be shifted to investors willing to bear it. Deposits would be replaced by mutual funds, which, as we know, are also immune to runs, and the risk of structured investment vehicles (SIV s) would be assessed accurately by rating agencies.

Reforms in factor markets labor, land, and finance are essential. China s leaders must improve labor market flexibility and labor mobility make land use, acquisition, and compensation more efficient and build a more market based financial system.

Climate change is not a partisan issue, and climate policy is essentially market based. It is about correcting market failures so that markets and entrepreneurship can play their proper role of ensuring innovation and efficient resource allocation.

It was begun with the invention of relativity theory and quantum theory.

To change this, the government needs to promote market based credit allocation. China needs a flexible and efficient financial sector, underpinned by an effectively supervised and regulated capital market, to avoid asset bubbles and support productive and innovative firms.

The Australian Government develops policies and manages programmes that support efficient and effective labour market assistance higher productivity, higher pay workplaces and increased workforce participation, including for women.

In theory, there is no difference between theory and practice. But, in practice, there is.

Fortunately, there is another way. Business led innovation and market based solutions can drive a decisive global shift from crippling fossil fuel dependency to more efficient renewable energy systems.

Some Parties are proposing the introduction of efficient fuel for boilers in industry, efficient coal fired boilers, efficient electrical motors, and efficient lighting in industrial buildings.

Neoliberal economic policies, predicated on well functioning markets, misfired in developing countries just as planning models, presuming competent and capable bureaucrats, failed in an earlier era. The efficient markets theory led policymakers astray by encouraging them to undertake excessive financial deregulation.

The problems with having a theory is that your theory may be loaded with cognitive biases.

And that is why so many economists and market participants were shocked by Yellen s apparent complacency. With US unemployment now at 5.1 , standard monetary theory dictates that interest rates must be raised urgently.

Theory and empirical evidence

There was a theory.

That is the theory.

Roughly a third, mesmerized by the meretricious appeal of the Efficient Market Hypothesis, argued that governments were the original sinners. Their ill conceived interventions notably the US backed mortgage underwriters Fannie Mae and Freddie Mac, as well as the Community Reinvestment Act distorted market incentives.

These services comprise post harvest systems in the food sector, fibre processing, product innovation and diversification for enhanced market access, and enhancing rural community livelihood through efficient agro supply chains.

So without a theory of planetary rings and with only grainy data, you can't have a good theory.

And he was reading Einstein's recently published general theory of relativity, and he was thrilled by this theory.

11 The Asian Bond Market Initiative was endorsed at the ASEAN 3 Deputies Meeting held in Chiang Mai in December 2002. Its objective is to develop efficient bond markets in Asia.

It's just elementary probability theory.

Brian Greene on string theory

Superstring theory what is it?

But enough of the theory.

Emily Levine's theory of everything

It is not a theory.

So beautiful. What a theory.

It's not a minority theory.

Everybody likes the aquatic theory.

A Theory of Boardroom Justice

A Grand Unified Economic Theory?

The experiment confirmed his theory.

This theory is very controversial.

One of the other predictions of string theory no, that's not one of the other predictions of string theory.

Now this is a fanciful theory.

One theory is they're just crazy.

Theory is red, black is experiment.

It was called the upsuck theory.

It's the same theory of gravity.

They follow from the fundamental theory.