More technically, to implement the portfolio construction
suggested by modern financial theory, one needs to know the entire joint
probability distribution of all assets for the entire future, plus the exact
utility function for wealth at all future times. And without errors! … We are
lucky if we can know what we will eat for lunch tomorrow –how can we figure out
the dynamics until the end of time?
--Nassim Taleb
--Nassim Taleb
Efficiency is Beauty. -- Mr. Money Mustache
CHART OF THE DAY
RETIREMENT FINANCE AND PLANNING
Joe Tomlinson on Variable Withdrawal and ImprovingRetirement Outcomes, my post on his post... Optimal asset allocations for variable
withdrawal strategies are quite different from the research findings and rules
of thumb based on fixed strategies. Indeed, the implications go beyond asset
allocation and show, for example, that equity glide paths in retirement are
relatively unimportant.
Savings after Retirement: A Survey, Nardi et al. NBER and Fed (Chicago and Richmond ). The saving patterns of retired US
households pose a challenge to the basic life-cycle model of saving. The
observed patterns of out-of-pocket medical expenses, which rise quickly with
age and income during retirement, and heterogeneous life span risk can explain
a significant portion of US saving during retirement. However, more work is
needed to distinguish these precautionary saving motives from other motives,
such as the desire to leave bequests. Progress toward disentangling these
motivations has been made by matching other features of the data, such as
public and private insurance choices. An improved understanding of whether intended
bequests left to children and spouses are due to altruism, risk sharing,
exchange motivations, or a combination of these factors is an important
direction for future research.
What is synthetic tenure, and why is it important?
Benefitnews.com
Retirement Spending, the RMD, and the PMT() Function. Blanchett,
Maciej, and Chen (2012) and Sun and Webb (2012) both studied the RMD rule as a
spending option and found it to be a reasonable strategy that roughly
approximates more sophisticated attempts to optimize spending... Though these
methods are more sophisticated, the underlying PMT formula remains as the
philosophical core of the spending recommendations. [comment: I have posted on this (i.e., PMT()) before in a discussion of Waring and Seigel's Annually Recalculated Virtual Annuity(ARVA)]
Trump, Monte Carloand Insectivores or Simulation is not a plan. Dirk Cotton Monte Carlo simulation was created by physicists. Enrico Fermi used
The Analytics of a Single-Period Tontine, Sabin and Forman,
Abstract: A single-period tontine is an arrangement in which a group of members
contribute to an investment pool, and after a fixed period of time, the pool is
distributed to those members who are still alive. The distribution is made in
unequal amounts based on member death probabilities and contribution amounts.
In a companion article we apply the single-period tontine to propose products
that we feel have commercial potential. Here, we focus on the analytics. The
analysis applies not just to single-period tontines, but also to other
arrangements that can be analyzed as a sequence of single-period tontines, such
as pooled annuity funds. The core of the paper is the development of formulas
for the mean and variance of the random amount that a surviving member receives
in a single-period tontine. We use the formulas to resolve an open question
about bias in pooled annuity funds and to show practical conditions under which
it can be made negligible. We show how the provider can use the formulas to
manage the subscription process, determining who is allowed to participate and
how much they are allowed to contribute, so that the statistics of the tontine
are favorably controlled. We use the formulas to compare mixing different
cohorts within a single tontine versus creating a separate tontine for each
cohort, finding that mixing cohorts is better because it reduces both
idiosyncratic risk and systematic risk.
MARKETS AND INVESTING
In Calm Markets Should We Buy “Cheap” Put Protection? AlphaArchitect.
- the [Volatility Risk Premium] spread is not insignificant. The Israelov and Nielson paper observes that from 1990 through 2014, the VRP averaged 3.4%, and was positive 88% of the time. That’s not only weird, but also has significant implications for strategies that use options…
- This is remarkable. Why should you pay a 2% fee to maintain a long vol position[long put], which doesn’t really offer much in the way of protection? It appears that, on average, long volatility exposure is very costly, compared with the meager benefits associated with it…
- in order to break even on a protective put strategy with 5% out-of-the-money options, a 1987-type black swan would have to occur every 21 years…
- The
authors suggest that if people have a strong view on an imminent market
correction that they implement that view by reducing equity exposure, or
by purchasing insurance assets that pay you to hold them. Accordingly,
paying through the nose for a option-based hedging program that loses
money for years while waiting for a big payoff that may never materialize
is not the way to go.
[comment: this link is an example of why I try to have systematic exposure to
short volatility by way of a short option strategy. The strategy has positive return expectations
both academically speaking as well as in practice along with, if it's
implemented right, non-correlation. That
makes it a discrete "alternative" asset class that can add to
portfolio efficiency. There are some
ETFs out there that do this and, though I haven't looked, maybe some mutual
funds(?). I do it on my own so that I
have more control over implementation and risk.
It is not for the faint-of-heart.
Rather than typical trading where small risks are taken in a continuous sequence
for the hope of big gains of some low-ish probability to yield an edge greater
than zero, this strategy requires one to continuously take big risks in
exchange for small gains of high-ish probability in order to yield an
expectancy > 0. Similar outcome if
done right but with a dicer (my opinion) path in between.]
Still Not Cheap: Portfolio Protection in Calm Markets,
Israelov & Nielsen, AQR. It is
well-known that portfolio insurance is expensive on average, but what about in
calm markets? History suggests it still is. We investigate the relationship
between option richness and volatility across ten global equity indices. Option
prices may be low, but their expected values tend to be even lower.
How Bad Could Bond Market Losses Get? Ben Carlson. there’s something that many investors forget
when discussing the implications from rising rates on bond returns. Namely,
that higher yields are eventually a good thing for your bottom line…A bad year
in the high quality, intermediate maturity bonds is typically the same as a bad
day or week in the stock market…[but]… Planning for fixed income assets is not
as easy as it once was…
Limited Marital Commitment and Household Portfolios, Addoum
et al. Cornell, LBS, U. Alberta . This paper examines the link between marital
decisions, consumption, and optimal portfolio choice in a life-cycle model with
limited marital commitment. Without full commitment, individual income shocks
lead to renegotiation between spouses, altering relative bargaining power and endogenously
generating time-varying risk aversion at the household-level. Consequently,
changes in relative income are associated with significant shifts in household
portfolios. We find strong support for this prediction using data from the
PSID. The model can also rationalize the link between marital transitions and
portfolio allocations observed in the data. Finally, the risk-sharing benefits
of marriage imply a positive link between wealth and risky asset holdings
across households.
Portfolio Panic - How to Not Ditch Your Investment Plan,
NewFound Research. there are many
approaches to investing that have proven track records of success. Each has its own strengths and weaknesses and
there is no holy grail. Success requires
developing a thoughtful plan that is backed by both theory and data and then
having the discipline to stick with that plan.
ALTERNATIVE RISK
Foreword to Ed Thorp’s Memoirs (A Man for All Markets),
medium.com, Nassim Taleb. It is the
dosage of your betting –not too little, not too much –that in the end matters. … Having
an “edge” and surviving are two different things: the first requires the
second.
New Book Shines Light On Momentum, ETF.com [comment: just bought; about half way through.]
Inside a Moneymaking Machine Like No Other, Bloomberg. The "manhattan project" of
finance? [story about Renaissance Technologies]
Does Risk Parity Maximize Risk-Adjusted Returns? markovprocesses.com
Great Minds Agree To Disagree On The Source Of The ValueInvesting Premium, Wesley Gray. Bottom
line: Great minds can disagree on the explanation, but nobody can dispute the
empirical fact that value stocks have outperformed growth stocks by a wide
margin over time. One would also be remiss in suggesting that exploiting the
edge in value investing is easy — it’s highly volatile and needs to be pooled
in a broader portfolio, ideally alongside momentum.
Review: Quantitative Momentum, CharlesSizemore.com Gray and
Vogel spend much of the rest of the book testing assorted momentum strategies,
and while I will spare you the pages of data tables, suffice it to say that,
sliced any number of ways, momentum strategies can add serious alpha. [comment: about half way through the
book myself]
SOCIETY AND CAPITAL
How to raise house prices and inequality, John
Cochrane. So the effects are not just to
raise house prices -- they are to increase inequality, reduce opportunity,
especially for low skill and low income people, and reduce the economic
vitality of the region.
Renewable energy is seeping into small-town America ,
Vox. What’s more, unlike the
abstractions involved in climate, clean energy is real, tangible, and — perhaps
most important of all — commercially viable. There are many things that divide
Americans, but they are generally united on the benefits of making money.
Financial Literacy Is Still Abysmal Everywhere, WSJ. A new OECD survey of 30 countries shows few
people can perform basic financial calculations or understand simple investment
rules
A long-accepted link between unemployment and economicgrowth is now being questioned, with important implications for the economy.
AIER. It appears that companies lay off
workers in the face of GDP fluctuations much more readily than they used to.
The wisdom of doing so may be debatable, but this behavior is likely to
continue. Expect employers to be willing to lay off people in tough economic
times. Ensure that you have sufficient savings to get through such a situation,
should it happen to you.
The Future of Military Technology is Intense, Visual Capitalist. Today’s infographic comes from Futurism,
showing the technological advancements we can expect to materialize in the
battlefield over the coming decades.
Health savings accounts: Another conservative 'reform'nostrum that chiefly benefits the rich, LA Times. [comment. Discussion is ok, maybe a
little tendentious but this is the LA Times after all]
Dallas Policeand Fire Pension Fund Beset by Withdrawals, WSJ. The revolt by members of the $2.27 billion
Dallas Police and Fire Pension Fund offers an extreme case of what can happen
when a pension wagers on lucrative returns to cover funding shortfalls…“We’ve never
seen anything like this,” said Detective Frederick Frazier, president of the
Dallas Police Association…“I have not seen this type of run on a fund anywhere
else in the country,” said Alicia Munnell, the director of Boston
College ’s Center for Retirement
Research.
Paying Bone Marrow Donors, Tim Taylor, is bone marrow an
organ, or is it more similar to blood plasma? The answer to the question is a
matter of life and death. About 275 American die every year because they have a
disease like leukemia or certain kinds of anemia that sharply reduces the
ability of their bone marrow to generate red blood cells--and they can't get a
transplant. Offering payment of perhaps $2,000 to donors could potentially save
those lives. Samuel Hammond makes the case in "Bone Marrow Mismatch:How
compensating bone marrow donors can end the transplant shortage and save
lives," written as a discussion paper for the Niskanen
Center (November 15, 2016 ).
The Plague of Long-Term Unemployment in Europe ,
Tim Taylor. American readers: can you
imagine the social turmoil in the US
if the unemployment rate has been above 10% for the last seven years, instead
of peaking at 10% back in October 2009 and falling down to about 5% by a year
ago in fall 2015? Can you imagine if half of these unemployed had been looking
for work for more than a year? Consider the difference, and you'll have a
better sense of why the EU is struggling to have much appeal to the European
public.
Do Rises in Oil Prices Mean Rises in Food Prices? St
Louis Fed. Prices
for agricultural commodities have been rising over the past 10 years. During
the same period, crude oil prices have also increased substantially. The
simultaneous rise in the price for agricultural inputs and crude oil has raised
new questions about whether an increase in oil prices translates to increased
food prices, an occurrence called pass-through…These findings suggest that if
there is any link between increased food and oil prices, it is extremely small.
Is healthy food a luxury for low-income households in the United States? Tyler
Cowen. findings suggest that there are
important trade-offs in policies that subsidize food expenditure because these
policies allow low-income households to purchase more of the healthy as well as
the unhealthy food products.
Is Indexing Worse Than Marxism? Burton
G. Malkiel, WSJ Opinion. Index funds
have long been ridiculed by active mutual-fund managers. But with index funds
outperforming more than 80% of their active peers over the past five- and 10-year
periods, and investors pulling hundreds of billions out of actively managed
funds and putting that money into index funds, it’s hard to claim that passive
index investing produces mediocre results. So a new critique has emerged. It is
now alleged that index funds pose a grave danger to the stock market and
overall economy.
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