Showing posts with label Dudley. Show all posts
Showing posts with label Dudley. Show all posts

Monday, April 20, 2009

Fed lending can’t solve “the fundamental problem — the shortage of capital in the banking system.”

TO BE NOTED: From the WSJ:

"
Three Reasons Why Fed Lending Isn’t a Panacea

The Federal Reserve has been fighting the persistent global credit crisis with a proliferation of lending programs that producing acronyms even faster than the Pentagon can. “I think the facilities have worked quite well,” the new president of the Federal Reserve Bank of New York, Bill Dudley, said in a speech over the weekend. “But the facilities haven’t been a panacea for three reasons.”

His three:

  • (1) Fed lending can’t solve “the fundamental problem — the shortage of capital in the banking system.” He added that “until the banking system is viewed as being sufficiently well-capitalized and is able to expand its lending activity significantly” the economy will suffer.
  • (2) Legal limits require the Fed to lend only when the would-be borrower offers sufficient collateral; it can’t lend unsecured or provide guarantees. (The Treasury can, however.)
  • (3) Initiatives such as TALF (Term Asset-Backed Securities Loan Facility) are off to a slow start because of “the reluctance of investors to participate” in part because of “worries about what participation might lead to” given the political environment. Dudley pronounced these worries “misplaced.”
Copyright 2008 Dow Jones & Company, Inc. All Rights"

Sunday, April 5, 2009

create liquidity spirals in which shocks to market liquidity reduce funding liquidity which in turn further reduces market liquidity

TO BE NOTED: From All About Alpha:

"
A new look at who is more susceptible to “hedge fund contagion” Apr 2nd, 2009 | Filed under: Today's Post

In August 2007, as quant hedge funds were swooning in an eerie precursor to the credit crunch, we reported on an academic study of “hedge fund contagion” (see post). Researchers found “no systematic evidence of contagion from equity, fixed income, and currency markets to hedge fund indices”. However, they did find that there was a contagion between hedge fund strategies themselves.

Now a new paper on this topic explores whether the correlation between hedge fund returns changes depending on market conditions and the overall performance of hedge funds. Possible “asymmetric correlation” between hedge funds is of critical importance to funds of funds, and by extension, anyone hoping to benefit from hedge funds’ reputed lack of correlation with each other and with equity indices.

Evan Dudley and Mahendrarajah Nimalendran of the University of Florida focus their attention on the correlation between extreme hedge fund returns only - i.e., those that occur in the left and right tails of the return distribution. Their hypothesis is that the correlation between hedge fund returns is somehow different during these extreme events than they are during “normal” times (a reasonable hypothesis given the often-cited hyperbole about how “all correlations go to one” in times of distress).

It turns out their hunch was correct. However, the extent to which correlations increased in hard times was different across various hedge fund strategies. Dudley and Nimalendran first examined the correlation between several hedge fund strategies and the S&P 500. They divided the return distribution of each strategy into quantiles and compared each quantile to the S&P 500. The chart below from the paper shows how two particular hedge fund strategies, Long/Short Equity and Event Driven stacked up:

The correlation between Long/Short Equity returns and S&P 500 returns was much higher in the left side of the L/S/ return distribution than it was in the right side of the L/S return distribution. The same was true for Event-Driven funds. In both cases, the correlation was much lower in the right “tail” of the return distributions and higher in the left tail (the bad tail).

However, this wasn’t the case for all hedge fund strategies. Global Macro and Market Neutral, two strategies that have recently shown a low market correlation, had relatively consistent correlations with the S&P 500 in both good times and bad.

Interestingly, Market Neutral funds seemed to have a negative S&P 500 correlation at the far end of both tails.

The results were somewhat similar, but less extreme, when each hedge fund strategy was compared not to the S&P 500, but to the broad universe of hedge funds. So if you’re tasked with monitoring a portfolio of individual hedge funds, and you’re being asked tough questions about the reputed diversification properties of hedge funds, you might want to check out this paper."

Hedge Fund Contagion, Liquidity Spirals, and Flight to Quality

Mahendrarajah Nimalendran
affiliation not provided to SSRN

Evan Dudley
University of Florida - Warrington College of Business


March 18, 2009


Abstract:
We develop a novel approach that investigates the economic determinants of contagion among hedge funds. Our approach explicitly takes into account the left tail dependency between returns. We empirically investigate the relative importance of three economic channels that potentially explain contagion among hedge fund indices. We find that funding liquidity (proxied by margins on equity and currency futures contracts for members of the Chicago Mercantile Exchange), which captures the extent to which a fund can finance its positions, is a significant determinant of financial contagion. Our results on funding liquidity confirm the predictions made by Brunnermeier and Pedersen (2009) that market liquidity and funding liquidity interact to create liquidity spirals in which shocks to market liquidity reduce funding liquidity which in turn further reduces market liquidity. Our results also show that "flights to collateral" of the nature described in Fostel and Geanakoplos (2008) are a significant determinant of contagion among some types of hedge fund strategies. We find little support for the third channel, which is the consumption effect described Fostel and Geanakoplos (2008), whereby asset prices decrease because bad news about one asset class increases the price of risk for all securities.

Keywords: Hedge fund, contagion, asymmetric correlation, copula, flight to quality, liquidity

JEL Classifications: G31, G32

Working Paper Series