And when the crisis was happening, the head of quantitative equities at Lehman Brothers said, Events which models predicted would happen once every 10,000 years happened every day for three days.

Models

Economics has an important quantitative side, which cannot be escaped. The challenge has been to combine its mathematical insights with the kinds of adjustments that are needed to make its models fit the economy s irreducibly human element.

Quantitative Easing for the People

Possible models

iPod Models

So, these mental models we look for evidence that reinforces our models.

So the quantitative results were great.

And here you can see how they really crafted a beautiful design process with physical models, with quantitative, as well as qualitative, methods to come to a final solution that is truly integrated and completely holistic with the architecture.

He models genes.

Both models improve.

Models of Madness

Models Behaving Badly

Models of ERAs

Kickoff data models

Debris environment models

We used quantitative arteriography, showing the narrowing.

QUANTITATIVE ASPECTS OF ICT, E BUSINESS AND

Whenever possible quantitative information should be provided.

Whenever possible, quantitative information should be provided.

Projects quantitative impact Project 1 957,000 spent

Create virtual LEGO models

Draw models of molecules

So models can change.

Models are not static.

These are the models.

The Three Swedish Models

Two Models for Europe

Models of tripartite dialogue.

What good models exist?

2.1.2 Short term models

2.1.3 Long term models

Models at Grace Hewitt's.

Emission projections were based on standard regression models, without the use of macroeconomic and energy models.

Quantitative indicators for the educational system. Lima, 1993.

Models can come from industry.

All examples of models changing.

Models are hard to dislodge.

So we built big models.

There are many great models.

And we studied many models.

Validation of agro ecological models

(Dovitch) They're all good models.

The models used by all of the forecasting organizations dramatically underestimated the fiscal multiplier the impact of changes in government spending on output. Second, they overestimated the extent to which quantitative easing (QE) by the monetary authorities that is, printing money could counterbalance fiscal tightening.

We can grade models, whether it's financial models in a business class or physical models in a science or engineering class and we can grade some pretty sophisticated programming assignments.