Transcript of "Personal Finance for Everyone (Hubspot 2014)"
Adam Nash @adamnash
February 25, 2014
Caveats & Preface
I am not a ﬁnancial planner
This presentation is not ﬁnancial advice
You would be extremely foolish to make investment
decisions based solely on the content of this
presentation or discussion
The opinions in this deck are intended purely to provoke
discussion & further education
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Why Personal Finance?
Poorly covered in traditional education, even
top tier universities
Not technically diﬃcult, but signal:noise ratio
Massive impact on your life
Money is one of the top 3 reasons
for marital problems
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Fast Five Finance Basics
1. Behavioral Finance Basics
2. Liquidity is Undervalued
3. Cash Flow Matters
4. The Magic of Compounding
5. Good Investing is Boring
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How many of you think
you are rational with
(show of hands)
You are NOT rational
People estimate answers to new /
novel problems with a bias towards
Example: 1974 Study
Most common examples:
Price you bought a stock at
High point for a stock
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Money is fungible, but people put it
in separate “mental accounts”
Lost movie tickets example
“Found Money” problem
Vacation fund & credit card debt
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Confirmation & Hindsight Bias
We selectively seek information
that support pre-existing
theories, and ignore / dispute
information that disproves them.
We overestimate our ability to
predict the future based on the
“obviousness” of the past.
(example: real estate)
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We see patterns in independent,
random chains of events
We believe that, based on series
of previous events, an outcome is
more likely than odds actually
Coin ﬂip example
It’s because with human behavior,
there are no “independent” events
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We have a tendency to mimic the
actions of the larger group
Crowd psychology is a major
contributor to bubbles (believed)
Easier to be “wrong with everyone”
than “right and alone”
No one gets ﬁred for buying IBM?
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In one study, 74% of investment
managers believe they deliver
above average returns.
Positively correlated with High IQ...
Learn humility early
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Overreaction & Availability Bias
Overreact to recent events
Overweight recent trends
Studies demonstrate that checking
stock prices daily leads to more
trading and worse results on
Worse in high tech, because we
are immersed in “game changers”
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You have $1,000 and you must
pick one of the following choices:
You have a 50% chance of gaining $1,000,
and a 50% chance of gaining $0.
You have a 100% chance of gaining $500.
Now, you have $2,000 and you must
pick one of the following choices:
You have a 50% chance of losing $1,000,
and a 50% chance of losing $0.
You have a 100% chance of losing $500.
Loss Aversion (aka Prospect Theory)
We hate losses more than we love
Average loss aversion is 3:1 (!)
Aﬀects views on wide range of
situations, including taxes, holding
on to losing stocks, “sunk cost”
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It’s OK to Not Be Rational
The key is that humans are predictably irrational
Know your own ﬂaws, and you can set up systems to
account for them
Self-awareness is key
(yes, my Mom is a psychologist...)
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Almost universally undervalued
Strictly deﬁned - it’s the
quantiﬁcation of how much money
you can get, and how fast.
Liquidity is the power to take
advantage of great investment
Liquidity is also, in the end, the
only thing that matters when you
need to pay for something.
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Liquidity & Returns
In almost all cases, liquidity is inversely
correlated with returns
Cash = very liquid
Private equity = very illiquid
Common mistake: Safety != Liquidity
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Practical Outcome: Emergency Funds
Standard recommendation is that you
have 3-6 months of living expenses in
cash / cash-equivalents.
That number increases if you are in
highly volatile industry / career.
Worth considering length of time for
potential job search.
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The ultimate secret to personal ﬁnance is
Spend less than you make
(on an ongoing basis)
Very easy to measure, but few people do.
Annual budget is a great idea.
Don’t forget to model in annual expenses
& “personal spending”
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What’s the right number? 3%? 6%?10%? 20%?
There is no question - the more you save, the more
secure you are. Income comes & goes, but expenses
/ lifestyle are sticky!
A lot of models assume working 40 years, and
producing savings to generate 80% of working
These models don’t actually match anyone’s real
There are a lot of models out there, and rules of
thumb, but it’s important to run the numbers yourself.
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The Magic of Compounding
Not convinced that Albert Einstein said it was the
greatest force in the universe.
It’s the key to almost all long term ﬁnancial planning.
Exponentials are bad in algorithmic cost, good in
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Rule of 72
In Excel, for each year, just use
4% over 20 years is 2.19x
8% over 20 years is 4.66x
Careful: it works on debt just as well as savings...
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The Benefits of An Early Start
Compounding really takes oﬀ over long time periods
Return at 8%
In most retirement planning
models, money saved between
ages 25 - 35 produces more
money than all savings between
35 - 65!
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The Dangers of Debt
Bankruptcy is literally when you can’t pay your debts.
You can’t go bankrupt if you don’t have debt.
You will never ﬁnd an investment that pays 8%
guaranteed, let alone 20%+
You will ﬁnd *tons* of credit oﬀers out there that will
charge you that.
“Bad” debt is toxic, your best return is to pay it oﬀ.
But emergency fund takes precedence.
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Good Investing is Boring
No one wants to be average, but with investing,
average is actually well above average.
You will beat most mutual funds, and a large majority of
your peers with simple, low-cost index funds.
Asset allocation explains ~90% of the variance between
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Basic Asset Allocation
Diﬀerent types of assets (stocks, bonds, etc) have
diﬀerent volatility & return characteristics
There is an eﬃcient frontier of combinations that
can maximize return for a given volatility
Complication: historical performance does not
predict future performance
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Simple Operating Model
2 hours of work per year.
Pick an asset allocation that is appropriate for your
emotional character & time frame & goals.
For each asset class, pick the cheapest index fund with
the lowest drift and best liquidity.
Rebalance every year.
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WSJ Guide to Understanding Money & Investing
The Millionaire Next Door
A Random Walk Down Wall Street
The Essays of Warren Buﬀett
Common Stocks & Uncommon Proﬁts
The Intelligent Investor
Devil Take the Hindmost
When Genius Failed
Against the Gods: The Remarkable Story of Risk
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Nothing in this presentation should be construed as a solicitation
or offer, or recommendation, to buy or sell any security. Financial
advisory services are only provided to investors who become
Wealthfront clients pursuant to a written agreement, which
investors are urged to read and carefully consider in determining
whether such agreement is suitable for their individual facts and
circumstances. Past performance is no guarantee of future
results, and any hypothetical returns, expected returns, or
probability projections may not reﬂect actual future
performance. Investors should review Wealthfront’s website for
additional information about advisory services.
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