dimelab dimelab: shrinking the gap between talk and action.

mathematics Topic in The Credit Debacle Catalog

complex mathematics modeled (1); derivative mathematical models impossible (1); Fiat World Mathematical Model (2); mathematical model (5); mathematical nicety (1); Mathematically Exposing (1); prove mathematically (1); spurious mathematical rationalisations (1).

Mon 2010-09-20 10:12 EDT

Mish's Global Economic Trend Analysis: Fiat World Mathematical Model

...Conditions today are essentially the same as during the great depression...It is the destruction of credit, coupled with the fact that what the Fed is printing is not even being lent that matters...we are in deflation based on the following definitions: Inflation is a net expansion of money and credit. Deflation is a net contraction of money and credit. In both definitions, credit needs to be marked to market...the mark to market value of credit is contracting faster than base money is rising...The Fed tries to hide the contraction in the market value of bank credit by its Don't Ask, Don't Sell policy...The credit bubble that just popped exceeded that preceding the great depression, not just in the US but worldwide. Thus, it is unrealistic to expect the deflationary bust to be anything other than the biggest bust in history. Those looking for hyperinflation or even strong inflation in light of the above, are simply looking at the wrong model...

Fiat World Mathematical Model; Mish's Global Economic Trend Analysis.

naked capitalism Tue 2010-08-17 12:40 EDT

Guest Post: Why Clearninghouses Are a Maginot Line Against Systemic Risk

As discussed in ECONNED and on this blog, clearinghouses are not a solution to the systemic risk posed by credit default swaps, since there is no way to have a CDS counterparty post adequate margin and have the product be viable (to put it more simply, adequate margin make CDS uneconomic). ..I am one of the few people around who knows something about the clearing business and theory and is not employed by an investment bank or clearinghouse. At the end of my career on Wall Street, I was hired to perform a financial autopsy of the special purpose derivatives clearinghouse set up by California as part of an innovative power market structure. It had failed in the state's power crisis of 2001-02. Observing the tremendous systemic risk generated by using conventional clearing techniques for all but straightforward derivatives, I embarked on a seven year quest. I formed a company that designed a mathematical, IT and legal structure to provide a transparent and orderly system to manage the risks of those derivatives which shouldn't be cleared conventionally. Imagine my surprise when the banks decided against using the system...

Clearninghouses; Guest Post; Maginot Line; naked capitalism; systemic risk.

Wed 2010-07-21 10:31 EDT

Social Democracy for the 21st Century: A Post Keynesian Perspective: Galbraith versus Krugman on Deficit Spending

In a recent post, Paul Krugman has criticised James K. Galbraith's view of deficit spending. The latter is obviously influenced by Modern Monetary Theory...Krugman has misunderstood Galbraith...Galbraith understands that there are real constraints on deficit spending, not phantom ``financial'' ones. Moreover, it is perfectly clear that Galbraith is talking about deficit spending during a period of high unemployment and low capacity utilization, and perhaps even in the face of a double dip recession. In his response to Galbraith, Krugman adopts the flawed quantity theory of money and attempts to prove mathematically what is perfectly obvious: that hyperinflation can result from continuous budget deficits that are monetized by the central bank. But, since Modern Monetary Theory already acknowledges that inflation is a real constraint on deficit spending, Krugman's analysis seems rather pointless.

21st century; deficit-spending; Galbraith versus Krugman; Post Keynesian Perspective; social democracy.

Tue 2010-06-01 17:29 EDT

billy blog >> Blog Archive >> In the spirt of debate ... my reply

...Steve Keen and I agreed to foster a debate about where modern monetary theory sits with his work on debt-deflation. So yesterday his blog carried the following post, which included a 1000-odd word precis written by me describing what I see as the essential characteristics of modern monetary theory. The discussion is on-going on that site and I invite you to follow it if you are interested. Rather than comment on all the comments over on Steve's site, I decided to collate them here (in part) and help develop the understanding that way. That is what follows today... We distinguish the horizontal dimension (which entails all transactions between entities in the non-government sector) from the vertical dimension (which entails all transactions between the government and non-government sector)...A properly specified model will show you emphatically that the horizontal transactions between household, firms, banks and foreigners (which is the domain of circuit theory) have to net to zero even if asset portfolios are changing in composition. For every asset created there will be a corresponding liability created at the same time...you will make errors if there is not an explicit understanding that in an accounting (stock-flow) consistent sense all these transaction will net to zero. In adopting this understanding you might abstract from analysing the vertical transactions that introduced the high-powered money in the first place, but never deny its importance in setting the scene for the horizontal transactions to occur. I think the differences between Steve's models and modern monetary theory are two-fold. First, I do not think that Steve's model is stock-flow consistent across all sectors. By leaving out the government sector (even implicitly) essential insights are lost that would avoid conclusions that do not obey basic and accepted national accounting (and financial accounting) rules. This extends to how we define money. Second, I think Steve uses accounting in a different way to that which is broadly accepted. It might be that for mathematical nicety or otherwise this is the chosen strategy but you cannot then claim that your models are ground in the operational reality of the fiat monetary system we live in. I have no problem with abstract modelling. But modern monetary theory is firmly ground in the operational reality and is totally stock-flow consistent across all sectors. If we used the same definitions and rendered Steve's model stock-flow consistent in the same way as modern monetary theory then Steve's endogenous money circuits would come up with exactly the same results as the horizontal dimensions in modern monetary theory. His results might look a bit different in accounting terms but most of the message he wishes to portray about the dangers of Ponzi stages in the private debt accumulation process would still hold.

Billy Blog; blogs Archive; Debate; reply; spirt.

naked capitalism Sat 2010-04-03 09:55 EDT

Guest Post: Top Analyst Says ``Developed Market Governments Are Insolvent By Any Reasonable Definition''

Dylan Grice, a top analyst for European financial giant Société Générale, writes: Developed market governments are insolvent by any reasonable definition. Who could have known? Everyone, actually...Grice also says: Eventually, there will be a crisis of such magnitude that the political winds change direction, and become blustering gales forcing us onto the course of fiscal sustainability. Until it does, the temptation to inflate will remain, as will economists with spurious mathematical rationalisations as to why such inflation will make everything OK . Until it does, the outlook will remain favorable for gold. But eventually, majority opinion will accept the painful contractionary medicine because it will have to. That will be the time to sell gold.

developed market governments; Guest Post; insolvent; naked capitalism; reasonable definition; Top Analyst Says.

The Economic Populist - Speak Your Mind 2 Cents at a Time Mon 2009-12-28 18:57 EST

Pricing a CDO - Not only Bad Math, Bad Computation too

A working paper, Computational complexity and informational asymmetry in financial products, Sanjeev Arora, Boaz Barak, Markus Brunnermeier, Rong Ge. sheds some light on the complex mathematical models upon which credit default obligations and other derivatives are based. What Arora et al. prove is not only are many derivative mathematical models impossible to compute, never mind in real time, because they require more computing power than the world possesses, the missing information to run a mathematical model is a very good place to cheat with.

Bad Computation; bad math; CDO; economic populist; Mind 2 Cents; Price; speaking; Time.

Jesse's Café Américain Tue 2009-11-03 20:12 EST

Nine More Banks Fail with CIT on Deck for a Packaged Bankruptcy While Gold Shines

...The current state of economics is most remarkable for its arrogant complacency in the face of two failed bubbles, a near systemic failure, a pseudo-scientific perversion of mathematics exposed, and an incredible capacity for spin and self-delusion. The people wish to believe, and Wall Street and the government economists are all too willing to tell them whatever they wish to hear, for a variety of motives. And there is an army of salesmen and lobbyists and econo-whores touting this fraud around the clock...There are good reasons for this failure of American "monetary capitalism," and it has to do with an oversized financial sector and a surplus of white collar crime that both distort and drain the productive economy. The current approach is to pump money into a failed system without attempting to reform it, to fix its fundamental flaws, to make an honest accounting of the results. The result are serial bubbles and the foundation for long duration zombie economy with a grinding stagflation that may morph into a currency crisis and the fall and reissuance of the dollar, as we saw with the Russian rouble. It will stretch the political fabric of the US to the breaking point. This is how oligarchies and their empires fall.

banks failed; CIT; deck; gold shines; Jesse's Café Américain; packaged bankruptcies.

Thu 2009-02-26 00:00 EST

Mish's Global Economic Trend Analysis: Fiat World Mathematical Model

Fiat World Mathematical Model; Mish's Global Economic Trend Analysis.