"Disciplined Systematic Global Macro Views" focuses on current economic and finance issues, changes in market structure and the hedge fund industry as well as how to be a better decision-maker in the global macro investment space.
Saturday, August 31, 2024
Quotes from the FT lunch with Eugene Fama
Wednesday, August 21, 2024
Now there is a fiscal r-star and it is worth comparing with the monetary r-star
We have lived through the period of focus on r-star, the neutral rate of interest, the long-run equilibrium interest rate, or the natural rate. This is the short-term rate that would prevail when the economy is at full employment and has stable inflation. In this environment, monetary policy is neither expansionary nor contractionary. In that sense, when we reach r-star monetary policy is neutral. Of course, we cannot observe the natural rate. This neutral rate is below 1%. See the recent presentation R-star: A Global Perspective by NY Fed president Williams. It has fallen out of favor because the narrative suggests that monetary policy is very contractionary. Note that there has been recent work on r-double star which focuses on the rate necessary for financial stability.
Now we have fiscal r-star which is developed in the following paper "Fiscal R-Star: Fiscal-Monetary Tensions and Implications for Policy" which is the real rate required to stabilize debt levels when the primary is set by exogenously through some authority. It is the rate that stabilizes a country's debt to GDP ratio given a deficit path with output growing at its potential and inflation is at its target level. Of course, this rate is not observable but has to be calculated. There can be a measurable policy tension between the monetary authority and fiscal authority if there is a gap between the fiscal r-star and the monetary r-star. Of course, this is at the r-star level; however, tight monetary policy when there are huge fiscal deficits will mean monetary and fiscal policy are at odds.
Sector performance comes and goes - Prepare for mean revisions
So what is the right bond interest rate level? it may not be much lower
Tuesday, August 20, 2024
How can you make data talk? Mistakes can be made
Hat tip to Jure Sah from twitter.
There are a lot of ways to make data talk through curve-fitting. yes, there is a science with the math behind these techniques for fitting, yet the choice of which technique is more art. There is no simple way to compare all the techniques, so you must make some guess on which approach is better.
For example, with trend-following, you can use different moving averages, or you can use some form of times series forecasting. Which is better? The proof is in the returns, but those returns can be generated from the choice of the portfolio, or the risk management employed.
At the least any curve-fitting should be compared against a few techniques to explore differences. The extra work will give anyone more confidence in the end results.
Monday, August 19, 2024
Carry and trend - the match for CTA's
Trend-following is a good stand-alone strategy, yet there are many investors that find the swings in performance hard to take. Of course, when trend is added in a portfolio the overall portfolio will do better; however, investors often focus on the risk of individual assets and not the risk of the portfolio to their detriment. This bias of focusing on the parts and not the whole is hard to break. The answer that investors should just get over it does not seem to be helpful. The alternative is to mix strategies in a portfolio in a thoughtful way that will produce the desired return profile. It may be viewed as suboptimal, yet it may allow investors to get closer to the preferred mix at the portfolio level.
So, what mixes well with trend-following? Trend-following is concentrated in futures and across all asset classes, so it would be helpful to integrate another strategy trough futures in a manner that can take advantage of the inherent leverage in futures. Additionally, an investor would like an additional strategy that will complement trend-following and do well when trend returns are subpar and see drawdowns when trend-following exceed expectations. This strategy would be carry.
Carry strategies can be applied to all major asset classes. In the case of commodities, backwardation and contango can be exploited. In currencies, the interest differential can be played. In bonds, the roll-down the yield curve as well as term premium can be gained. In equities, dividend yields can be exploited. The table from Nick Baltas provides the basics of carry across asset classes.
The advantage of carry combined with trend in futures markets is that the two can be integrated. If you are long futures form trend, and the market is in backwardation, the trend can be adjusted through moving to a different point on the futures curve. Clearly, the trend returns, especially when held for the longer-term, will be impacted by the shape of the futures curve. The same can be said for currencies and bonds. The carry effects will either enhance or detract from trend. Although it is a second order effect, carry will supplement trends, so it should be integrated with trend strategies even if there is no explicit embedded carry strategy. In fact, one could argue that carry cannot be separated from trend within the futures markets.
Sunday, August 18, 2024
Tech bubbles - When valuation is hard and euphoria is high
A great history of monetary and fiscal policy
If you had to read one book on monetary and fiscal policy in the US, Blinder's easy to read work, A Monetary and Fiscal History of the United States 1961-2021 will fit the bill. This book is clear, at times humorous, and always insightful. Blinder writes with confidence as someone who has been studying this topic for decades as well as having a ringside seat as both an academic and policymaker.
Blinder is clearly a Keynesian, so he is sympathetic to its policy prescriptions, yet his review of the last five decades is very compelling. He makes the case that policy, whether fiscal or monetary, is driven by politics. Forget that the Fed is independent, it is political which at times pushes it to independent policy but at other times, it will be consistent with fiscal policy. Fiscal policy through the lens of Keynesianism, has seen ebbs and flows between acceptance and avoidance; however, there is now a clear bias toward deficit financing whether from Republicans or Democrats. All may not call it that, but the result is that the political process does not allow for automatic stabilization that will smooth deficits. Republicans can act like Keynesians as well as any Democrat. It is not always a pretty picture of thoughtful policymaking. The Fed is said to be independent which at time allows for quick action, yet monetary policy cannot solve all problems and the pressure not the Fed is strong.
I can say that a learned a good amount of monetary and fiscal history from this book. Policymaking is complex and the theories of academic economists have often not been helpful in this process. I have lived many of the events, but Blinder has a great way of synthesizing and summarizing the key issues at different times which makes for good reading. Macro finance is often about knowing how to place current events in context and Blinder's book will help you do it.
Other readings that place this book in context:
Friedman, Milton, & Anna J. Schwartz. 1963. A Monetary History of the United States, 1867-1960. Princeton: Princeton University Press.
Stein, Herbert. 1969. The Fiscal Revolution in America: Policy in Pursuit of Reality. Chicago: University of Chicago Press.
Connectedness and contagion tied to institutional structures
There is a lot of talk about connectedness and contagion in markets, yet the institutional structures are often overlooked as major contributors to the cause or control of major market shock events that are associated with panics. Hal Scott in his book Connectedness and Contagion: Protecting the financial system from panics. As a lawyer Scott has a different perspective than most economists, but this is a useful book for any economist who is studying panics. The focus is on the policies and their impact on markets from the Great Financial Crisis. Some policies have been critical at mitigating any panic and contagion, but Scott also suggests that policy changes and structures can add to potential risks.
We often find that markets are more connected than expected during a crisis. Whether third party creditors, derivative counterparties, prime brokerage, structured securities, or money market funds, there are a myriad of connections that lead to connectedness and higher correlations. The contagion during the GFC was significant across the banking system, money markets, and brokerage firms. There have been changes in the system, but we again found that significant connections existed during the Great Pandemic. Solve one problem and a new one will arise.
All the panic problems are attempted to be solved through the lender of last resort, yet the idea of lending freely in a crisis is not as easy as waiving some magic monetary or fiscal wand. The rules and programs that need to be in place or are in place can be very complex. Unfortunately, Scott makes the case that some of the rules post-GFC have reduced the ability of the Fed and the government to serve as the lender of last resort, and rules can add significant complexity to the marketplace. There is not uniformity of rules across all central banks, so if there is a global contagion, it is not clear how different central banks will respond.
Banking rules such as the Basel III framework are complex, yet other supposedly simple approaches will not solve the problem. The designation of globally systematically important banks, risk-weighted assets, leverage ratios, stress tests, liquidity requirements, living wills, contingent capital, or other attempts to solve contagion may lead to other problems which are not obvious. Money market funds like banking institutions have similar problem with trying to regulate away crises. However, rules are needed because bailouts are expensive and in a crisis mistakes will be made.
The watch words form this book - know your institutions and regulation before a crisis because once a panic comes it will be too late to try and understand the system.
Tuesday, August 13, 2024
Trend-following as negative crisis beta as well as crisis alpha
Trend-following has been described as crisis alpha. This has been a useful depiction of the strategy, but it focuses on the idea of alpha creation when trend-following is also focused on dynamic beta. There is return unassociated with beta, the alpha of trading other markets than equities, and there is dynamic beta associated with returns based on market timing. There is alpha during crises, but when looked at all periods, the value of beta return is greater than the alpha return contribution.
There is diversification of assets classes, but trend-following, because it allows for long and short positions, is really about market-timing which creates long and short beta. It is this changing beta which is the true driver of returns and diversification. This focus on change beta is described in the Quantica Capital "Negative crisis beta and the hidden market timing ability of trend-following CTAs".
The focus of this paper is that the core value-added of trend-following can time markets. In particular, it has the ability to time equity markets which will mean that its beta will move between positive and negative values. Over the long run, this time will lead to a beta that is close to zero for equities. This will still lead to risk mitigation, but the form of this mitigation is through timing. This applies to all the markets traded, but Quantica focuses on the equity exposure.
Quantica argues that 2/3rds of the the industry's total retune has been generated during the 16 worst calendar quarters for equity markets while the 81 remaining quarters are associated with the remaining third for the period from 2000 to 2024.
About 80% of the total trend-following performance can be attributed to equity beta either positive or negative and it made a positive contribution in 70 of 97 quarters. Negative crisis beta led to a positive contribution in 15 of 16 worst quarters which was about 40% of trend-following in those periods. Trend-followers have equity market timing ability. If you restrict long equity exposure will have a significant negative impact on performance, so don't restrict equity exposure for trend-following. Allow trend-followers to take their timing risk and you will see both return improvement and risk mitigation.
Nevertheless, crisis alpha still exists and is a significant contribution to returns during periods of negative equity returns. Trend-following is not just a crisis alpha story, and it is not a crisis beta story. It is a combination of timing with diversification.
Monday, August 12, 2024
The three C’s of systemic risk Connectedness, Contagion, and Correlation
The three C’s of systemic risk are Connectedness, Contagion, and Correlation. Systemic risk can increase because institutions are tied structurally through funding, common portfolios, and behavior.
Connectedness is about the plumbing. It is also about the rules of the game. Regulation can increase or decrease connectedness.
Contagion is when an event sweeps across institutions that may not be connected. It is a behavior issue. It usually cannot occur if there is no connectedness. Herding will occur during a crisis as expectations condense into specific common beliefs.
Correlation is the result of connectedness and contagion. If there is a crisis, we know that correlations will increase and trend to 1. There is a common view and common behavior. We will not know how much connectedness or contagion will exist until we see the correlations across markets rise.
Any discuss about systemic risk should thinking about the 3 C's. Any discussion concerning the prevention of systemic risk or crisis will try and answer what may happen with the 3 C's.
The importance of finance to economics
Economics without finance is like Hamlet without the prince. - Claudio Borio
Banks from too small to too big - Is there room for innovation?
From too small to survive to too big to fail, there has been a significant change in bank risk given the huge economies of scale and consolidation in this sector.
In the 1930's the problem in banking was an issue of too small to survive. Banks during the Depression were failing left and right. The same thing happened during the great thrift upheaval in the late 1980's. The problem was not size but number.
Now the banking sector has changed. The small banks have been under the pressure of consolidation, and with commercial real estate problems, the issue of further consolidation will again be on the table, yet the real threat is too big to fail.
The government will bail-out any large institution based on the threat of contagion. This does not mean that banks are cheap or good investments for shareholders, but it does tell us there is limited discipline with large institutions beyond what is required by regulations. With systematic stress testing, there will be greater similarity with large banks who meet stress-testing requirements. Regulation will drive many key decisions which will increase systematic behavior.
Can there be innovation in banking in a too big to fail environment? This is a question I have been thinking about and not sure of the answer. What have been the new innovations in banking? We know that technology has been used to control and cut costs, but this does not fall under product development.
A classic framework that never goes out of style - Porter's 5 forces
Friday, August 9, 2024
Managed futures - the "mystery" factor
This mystery factor is revealed to be managed futures, specifically trend-following. This is an interesting way to portray trend-following. I don't really buy this depiction of trend-following as a unique risk factor or premium, but if you broaden your thinking, it is special. The CSAM trend-following index is a diverse portfolio of trend with a rather simple model that creates a unique return stream based on the behavior of investors to follow price action. At the least, it looks as though trend-following is a better alternative than some of the other well-defined factors such as value, size, momentum, quality and low volatility.
The decay of hedge fund launches
Campbell's law, Fed Policy, and 2% inflation
Campbell's Law - The more any quantitative social indicator is used for social decision-making, the more subject it will be to corruption pressures and the more apt it will be to distort and corrupt the social processes it is intended to monitor
Jerry Muller's corollary to Campbell's Law, "Anything that can be measured and rewarded will be gamed."
Goodhart's Law, "Any measure used for control is unreliable." or "When a measure becomes a target, it ceases to be a good measure."
Let's think about the 2% inflation target. Why do we need to have a 2% target? What makes it so special? How close do we have to get to 2% to say the Fed is successful? What happened to an average inflation rate of 2%? If we want to average to a 2%, then should the Fed push to something below 2%?
Can you have deflation and economic growth? Is there something like good deflation and bad deflation?
It is becoming increasingly clear that the focus on some arbitrary target can lead to more economic problem. If we control price inflation, we may just allow for greater asset price inflation. The goal is not some inflation number but stable purchasing power and effective growth. This may mean that the Fed intervenes in markets to provide financial stability but that is a last resort and not a policy of denying loses. We should not be data driven but goal driven. Let's be clear on the goals and why they are relevant.
Thursday, August 8, 2024
Managed futures and other hedge fund strategies
KuU - Known, unknown and Unknowable risks
One way to stop the needless noise associated with measuring risk is to develop frameworks on how to look at the risk problem. All risk situations are not the same. A conceptual framework can help with analyzing problems and improving the precision of our thinking. Within risk management, a good framework was developed by Deibold, Doherty, and Herring in their under-appreciated book The Known, the Unknown, and the Unknowable in Financial Risk Management. The KuU framework focuses on three types of risk, the known which is measurable or countable, the unknown which is what many have called uncertainty, and the unknowable, what we are not able to imagine or a function of our ignorance. All are focused on our knowledge which is either based on a measurement problem and theory issue. In KuU framework, we an look at risk in three dimensions.
K, the known, refers to the probability distribution for an asset. This is the classic definition of risk. The outcomes and the probabilities for a situation are known. Knowable situations are well understood. There is a model, and the model has broad agreement among users.
u, the unknown, refers to a situation where the probabilities cannot be affixed to a set of outcomes. This is what Frank Knight would call uncertainty. If there is an unknown situation, there may be competing models which only offers conjectures and not clarity on what is possible.
U, the unknowable, would be any situation where future events cannot be identified. The events and probabilities are not known. Under this situation, there is no underlying model that can address or be associated with a market situation.
The KuU framework can be associated with risk, uncertainty, and ignorance. By looking at any situation through this lens, we can better frame possible solutions. Is the issue a measurement problem? Is it a situation where we cannot get a count or measure? Is this a situation of ignorance?
We can solve or reduce ignorance through deeper research of the risk problem. We can also work at better measurement of risk, so that we can place bounds on the downside. If we can control risk and improve measurement, we can focus on the real problem of uncertainty.
Wednesday, August 7, 2024
Unsupervised learning - Clustering and dimensionality reduction
Unsupervised learning can be a useful tool for finding relationships or grouping that may exist with large data sets. This can be extremely useful for finding deeper relationships than what may exist from just looking at correlation relationships. It can also be useful at finding links between a large set of assets and exogenous factors. More finance work has been done using PCA as a way of generating simple dimensional reductions. It is an east way to eliminate a primary common factor across stocks.
I have been using unsupervised learning to help better gain diversification within a portfolio of futures markets especially within the commodity space.
Tuesday, August 6, 2024
What is the right amount of investment staff?
Marty Zweig's rules - still useful
Monday, August 5, 2024
Know your moats to find value
There is a corporate life cycle which requires changing metrics
Strategy - there are trade-offs between agreement and certainty
Saturday, August 3, 2024
The great Rotation of July being upended in August
It is truly surprising how fast expectations and themes can change in equity markets. July was being called the Great Rotations from growth and momentum into smaller caps and value based on the view that inflation was solved, and rates would come down likely in September. The inflation problem was being licked and US economic growth was still considered reasonable. The result was interest sensitive sectors like real estate and utilities did well. Small caps did well. Value was doing better than those growth and momentum driven stocks.
The story has now changed over the course of two days since the Fed meeting. Initial jobless claims have moved higher. The Sahm Rule may have been hit. The employment number moved lower relative to expectations. The unemployment rate moved higher, and the talk has been about Fed making a policy mistake and a 50 bps cut is on the table.
All the facts are true; however, there is a sense of market over-reaction. The Mag Seven may come down to more reasonable levels and there should be a careful review of small cap names. The equal-weighted over market-cap trade looks more attractive at this time. Macro models will tilt to lower exposure to stocks and more to bonds, but it may be early to suggest that this is the beginning of major correction. Unfortunately, a correct is biased by the mega cap names and not the average name.