One of the puzzling things about post-crisis financial policymaking is the dual understanding that we missed the excessive build-up of risk before 2007 in spite of having all the numbers right in front of us and at the same time founding the new world order on numbers and measurements. Have the policymakers fallen for the McNamara fallacy?
Why do the regulatory authorities seemingly fall into the category of model believers, if not quite to the view that there must be one true model? Well, it is sort of inevitable the way the regulatory process works.more
There a lot of evidence that models are less than perfectly reliable. Why then do we rely so much on models in decision-making, and especially financial regulations? Because there are three types of people: Believers in true model, skeptics who accept model risk and nihilistic rejectionists.more
Much of the analysis of the recent market turmoil is amusing. Take the Wall Street Journal, Why the Fed Is the Root of Much Market Turmoil: Fed is a key reason markets have plunged and risk of recession rising . Here is a quote:more
Last January I looked at how the Swiss FX shock affected the most popular risk measures. Events of the past week give us another interesting test. My daily risk forecast shows the various risk measures for a number of assets, but focus on the SP-500, and the following picture taken from the site today:more
I have been in a conference for the past few days, and have seen a few presentations on macro-pru type regulations. I was bothered by this work.more
Our LSE blog It is important that we understand and do something about systemic risk. The problem is that we desire two incompatible things simultaneously: we wish the financial system to be safe; but we also want to finance risky economic activity.more
I got to be on the radio show Sprengisandur, if you understand Icelandic. After discussing Greece, got asked about Iceland. The Icelandic authorities could have made some of the same mistakes as the Greek government did in its crisis, but overall, the three governments since then, have done a decent job. All, in their own way, paving the way for prosperity.more
May 14, 2015
Bloomberg today had an interesting piece, called Market Moves That Are Supposed to Happen Every Half-Decade Keep Happening. Here is their self-described “terribly simplistic list”
Just looked again at the what I did on the Swiss FX shock, looking at how the various risk measures performed in the days after the event, and also looking at the risk of the inverse FX.
The original analysis just looked at the risk of the Franc appreciating, but why not look at the risk of the euro appreciating.more