There are two categories of policy available to the government to influence an economy; monetary and fiscal. Fiscal policy employs government spending and taxation. Monetary policy, primarily overseen by the Federal Reserve and the Treasury is used to control and manipulate the supply and the cost (interest) of money in order to regulate the growth in the economy and the stability of prices. Of the nearly $12 trillion lent, promised and spent so far, Fed Chair Ben Bernanke’s program to drive down mortgage rates is delivering on its promise. Fixed 30-year mortgage rates are now down to 4.78% according to Freddie Mac. They are down for the second week in a row.

This was a good week from both the perspective of strong new monetary remedies as well as economic indicators that the economy may be turning. On Monday, Mr. Geithner knocked one out of the park (market-wise) when he announced his plan to buy as much as $1 trillion of bad assets from banks and avoid nationalization. Bond fund giants Pimco and Blackrock and others say they will participate in the plan. Economic reports on housing and durable goods also added to the prospect that the fourth quarter’s slide of 6.3% might have been its worst.

Today, there is a strongly held belief that financial markets are efficient. The efficient market hypothesis maintains that prices of traded assets such as stocks, bonds, or property adequately reflect the sum of all known information at any given point in time. With today’s rapid flow of information, we see prices adjusting ever more quickly and with greater volatility. The hypothesis also asserts that it is impossible to consistently outperform the market by using any information the market already knows, except through luck. There are strong and passionate opinions on both sides of this hypothesis and it is not our goal to defend or to debunk them today. Rather we aim to point out that because of the widely held belief in market efficiency there are some exciting opportunities that have strong potential if we lengthen our timeframe beyond nest week or next year. We want you to know about them.

This afternoon we find the S&P 500 advancing for the fourth day, up nearly 12% for the week. News on Tuesday that Citigroup CEO Vikram Pandit’s remarks in an internal memo saying the bank is having its best quarter since 2007 and comments from regulators in Washington suggesting they may reinstate rules that limit short selling sparked the rally. By Wednesday it looked like it would run out of steam when Thursday’s Retail Sales report demonstrated there was still life in the consumer. The possibility that consumer, the largest part of the US economy combined with the picture Bernie Madoff swiftly and justly being escorted off to jail in handcuffs gave the market it’s second powerful boost upward. This week’s move dramatically demonstrates how fast markets can move on relatively little information.