馃攳
Bailout 8: Systemic Risk - YouTube
Channel: Khan Academy
[0]
I think we're now ready to
tackle the big picture and
[3]
what has our government
officials so
[7]
worried right now.
[7]
So what I've done is, I've just
drawn the balance sheets
[11]
for a bunch of banks.
[12]
Obviously, this is simplified.
[13]
And I made all of their balance
sheets look the same.
[15]
All of these banks, each of
these kind of represents the
[17]
balance sheet of a bank.
[18]
And just to explain it, the
left-hand side of this balance
[20]
sheet, so this column right
here-- and maybe I can, at
[24]
least for the first bank,
mark it a little bit.
[27]
So what I'm squaring off
in magenta, that's the
[35]
assets of that bank.
[39]
What I'm squaring off
in blue, that's the
[44]
liabilities of the bank.
[45]
And what I wrote here is, it has
$4 billion of liabilities.
[47]
Its assets, I divided it between
$3 billion of other
[51]
assets and $2 billion of CDOs.
[54]
Because we want to focus on the
CDOs, because that's the
[56]
crux of everything
that's going on.
[58]
And we have $5 billion in
assets, $4 billion of
[60]
liabilities, so you have
$1 billion in equity.
[62]
So that's what's left there.
[63]
So this is just another visual
representation that
[66]
liabilities plus equity
is equal to assets.
[70]
Or assets minus liabilities
is equal to equity.
[75]
And I've just copied and pasted
this one balance sheet
[77]
a bunch of times.
[78]
I don't know whether we're
going to use all those.
[81]
But let's just assume, for
simplicity, that a ton of
[84]
banks in the system have this
identical balance sheet.
[86]
Obviously, they don't have an
identical balance sheet.
[88]
But all of their balance sheets
might have kind of
[91]
similar properties.
[97]
This isn't always the case,
different banks have different
[99]
exposures to CDOs.
[101]
Some of them have a lot, some
of them have a little bit.
[103]
Some of them are valuing
them more
[105]
conservatively than others.
[106]
But just for the sake of
simplicity, I've just made all
[108]
the banks in the situation where
the book value of the
[112]
CDOs that they have on their
balance sheets is the larger
[115]
than their equity value.
[117]
And I did that for a reason.
[119]
Because it leads to the issue
of, are these banks facing
[122]
just a liquidity issue
or are they facing
[125]
just a solvency issue?
[127]
If you believe that these are
worth $3 billion, these
[130]
assets, these liabilities are
worth $4 billion, then the
[133]
crux of whether it's a liquidity
or a solvency issue
[136]
all falls down as to whether
these are worth
[139]
$2 billion or not.
[140]
For example, if these are worth
$2 billion, then you
[142]
have $1 billion of equity.
[144]
If these are worth $1.5 billion,
well maybe they're
[147]
being a little optimistic here,
but you'll still have
[149]
$0.5 billion of equity.
[150]
So you're still solvent.
[153]
And in that situation, in
theory, one is just if they
[158]
don't have the cash when some of
their debt comes due, they
[160]
should just be able to
borrow some money and
[163]
get past that hurdle.
[164]
And then in the future maybe
sell their assets and still
[167]
have positive equity.
[168]
However, if the true value of
those CDOs, and this is kind
[172]
of a philosophical question,
what's the
[174]
true value of anything?
[176]
And the best thing that we as
humans have been to be able to
[178]
come up with is a market.
[181]
The market value tends to be the
best representation of the
[184]
true value of something.
[187]
Let's say the true value of this
is $1 billion or less,
[190]
then we have a situation.
[191]
For example, if these are worth
nothing, then we only
[193]
have $3 billion of assets, $4
billion of liabilities, we
[197]
have negative equity.
[198]
This company is worth nothing.
[199]
And to lend this bank or this
company any money would just
[203]
be throwing good money
after bad.
[204]
Because that money is just going
to go into a black hole.
[207]
Because one of the people who
this company owes money to is
[211]
probably not going to
see their money.
[212]
And if you are the most junior
person lending the money--
[215]
which means that when all the
money is distributed if they
[217]
go into bankruptcy, you're the
last person to see the money--
[220]
then you're just throwing
good money after bad.
[222]
So that's the issue.
[223]
But I want you to see
the big picture now.
[225]
Because if it was just an
issue with one bank it
[227]
wouldn't be a big deal.
[228]
If it was just Bear Stearns
or if it was just Lehman
[231]
Brothers, not a big
deal, let the
[233]
greedy bankers go bankrupt.
[234]
And they probably are doing
just fine with the bonuses
[238]
they've collected after sourcing
these CDOs for the
[241]
past eight years or five
years or however long.
[245]
But what I want to show you in
this video is what people are
[248]
talking about when they
say systemic risk.
[251]
So these $4 billion in
liabilities, these are loans,
[256]
maybe from other banks.
[257]
In fact, probably from
other banks.
[259]
And those loans from other
banks, those are assets of
[263]
other banks.
[263]
For example, let's say this
is Bank A, this is Bank B.
[269]
Maybe a billion of these
are a loan from bank B.
[276]
And if this is a loan from Bank
B, Bank B would have an
[279]
asset called loan to Bank A.
[283]
On Bank B's balance sheet
we're calling this a
[285]
loan to Bank A.
[287]
This is one of its assets.
[288]
And then one of its liabilities
will be a loan
[290]
from Bank B.
[292]
So how can I say this?
[294]
They took this money and
they gave it to B.
[297]
I'm sorry, B had money, gave it
to A in the form of a loan.
[301]
And so that cash
ended up here.
[303]
And they got an asset called
loan to Bank A.
[307]
And this is a liability,
loan from Bank B.
[309]
And they might have taken that
money and they might have lent
[312]
it to Bank C down here.
[316]
I think you're starting to see
how this gets pretty hairy
[321]
very fast. So let's say that
Bank A, one of its $3 billion
[326]
in assets, is a loan
to Bank C.
[337]
And so on Bank C's balance
sheet, it'll say
[342]
loan from Bank A.
[344]
Or so we owe A $1 billion.
[347]
And A says, C owes me $1
billion, and that's all fine.
[350]
And then you see that oh,
we owe B $1 billion.
[352]
And then we could
keep doing this.
[354]
Or I could just even make this
into a circle already.
[357]
So maybe Bank B has some money
that it owes to someone else.
[360]
And let's say that someone else,
just for fun, just to
[363]
make this interesting-- I think
you can extrapolate and
[368]
think about how this gets
complicated very fast. Bank B
[371]
has borrowed money
from Bank C.
[372]
So Bank C will have an asset
here that says, no I lent
[375]
money to Bank B.
[382]
Fair enough.
[384]
OK, so now we're in an
interesting situation.
[387]
Let's say this loan, the
loan from Bank B to
[391]
Bank A comes due.
[392]
And we've studied this
multiple times.
[399]
And let's say for whatever
reason, all of these other
[401]
loans, they're not liquid.
[403]
They're not due yet.
[405]
So Bank A can't get rid
of these loans.
[411]
So let's say this comes due,
this is $4 billion.
[413]
They can't sell any of this.
[415]
So Bank A has to come up with $1
billion somehow for Bank B.
[421]
So that's the situation
we're dealing with.
[423]
I'm just going to say
that they can't sell
[425]
any of these assets.
[426]
So it all comes down
to the CDOs.
[427]
So there's a couple
of issues here.
[429]
If you think it is just an issue
of illiquidity, if these
[432]
are $2 billion of assets,
they're really worth $2
[435]
billion, but Bank A just
can't sell them.
[437]
Because either there's
quote-unquote
[439]
nobody willing to buy.
[440]
Although, I would argue if
no-one is willing to buy
[442]
something, then its true
value is probably zero.
[445]
But let's just say Bank A says
no-one is willing to buy,
[448]
we're just illiquid, this is
really worth $2 billion.
[450]
So one situation is they could
get a loan from someone.
[453]
Maybe the Fed would be willing
to take this as collateral.
[456]
So they would give this as
collateral to the Fed.
[458]
Maybe the Fed will give them
a billion dollar loan.
[460]
And then they can use
that to pay Bank B.
[463]
Let's say that's off the table
because this is just smelly
[467]
enough collateral that not even
the Fed, which we now
[470]
realize is willing to do
anything to support the
[471]
markets, not even the Fed is
willing to give them a loan.
[474]
Or enough of a loan to
pay off that loan.
[477]
The other situation is maybe
they can get an equity
[480]
infusion from a sovereign
wealth fund.
[481]
And we covered that a couple
of videos ago.
[483]
Where the sovereign
wealth fund will
[484]
essentially inject some cash.
[486]
It'll dilute the shares and then
you know maybe we had 500
[489]
million shares before.
[490]
Now we'll have 2
billion shares.
[491]
So the sovereign wealth fund
will take over roughly 80% of
[497]
the company.
[497]
And in exchange for 80% of the
company, would give maybe $2
[500]
billion and then you could use
that to pay off this loan.
[503]
But let's say that that's not
on the table anymore either.
[507]
Because the sovereign
wealth funds have
[508]
gotten burned so much.
[511]
So what happens?
[511]
Well we learned what happens.
[513]
If you can't get a loan, a new
loan, to replace this loan, or
[517]
if you can't get an equity
infusion from kind of a
[519]
greater fool, what happens?
[520]
You go into bankruptcy.
[522]
And this is what happened
to Lehman Brothers.
[525]
Lehman Brothers went
into bankruptcy.
[526]
No sovereign wealth fund, no one
else bought the company.
[529]
And I should probably
do another
[529]
video on that scenario.
[531]
And they couldn't get a loan.
[532]
So they went bankrupt.
[533]
I should call this Company
L actually.
[535]
But I'll call it Company
A for now.
[536]
Because I don't want
to impugn anyone.
[539]
I actually don't think Lehman
was any worse or better than
[542]
any of the other players here.
[544]
So when they go into bankruptcy,
something very
[547]
interesting happens.
[549]
Now, Bank B, they were already
worried about these CDOs.
[553]
These CDOs were already
an issue.
[554]
And they were probably thinking,
boy when when Loan C
[557]
comes due, I'm going
to be in trouble.
[558]
Or when Loan D, or F, or
whatever, I'm going to be in
[562]
trouble because I'm going to be
in that situation that I'm
[565]
essentially forcing Bank
A into right now.
[567]
But now I have a new problem.
[569]
This loan to Bank A isn't
getting paid off.
[576]
And who knows?
[577]
Bank A is going to go
into bankruptcy.
[580]
Maybe in bankruptcy we realize
that these are worth nothing.
[584]
And if those are worth nothing,
then maybe I'm very
[588]
junior in seniority in terms of
where my loan is and maybe
[592]
I get nothing.
[593]
Or I get a few pennies
on the dollar here.
[594]
So maybe I thought this was $1
billion and I have to write
[597]
this down to $0.5 billion.
[600]
So now I have two problems. I
have this and I have this.
[603]
And once again, this is
a non liquid loan.
[606]
Bank A is in bankruptcy.
[608]
And if I wanted to somehow get
the value of this I have to
[611]
wait for all of Bank A's assets
to go into liquidation.
[614]
And then whatever assets I get
I would have to sell it.
[617]
So this is kind of
a frozen asset.
[619]
So once again, I'm stuck holding
this non liquid asset.
[622]
So now I have this non liquid
asset that's probably not
[624]
worth what I thought it was,
which was a loan to A.
[626]
Then I also have these CDOs.
[629]
And now, God forbid, let's
say that I had another
[635]
loan to Bank D.
[638]
And now let's say Bank
D goes bankrupt.
[640]
And then I have another
loan that's bad on
[642]
top of these CDOs.
[643]
But the CDOs were the
crux of the issue.
[645]
That's what caused
the situation.
[646]
If Bank A could have only sold
this CDO for $2 billion, it
[651]
wouldn't have caused this
chain reaction.
[654]
And Lehman Brothers really was
the thing that catalyzed this
[659]
whole chain of events.
[662]
And then you can imagine now
Bank C is worried because now
[664]
Bank B has all of these illiquid
assets on top of
[667]
these CDOs and it starts
to look bad.
[668]
And you can imagine, now it's
even less likely that when a
[672]
bank, let's say that Bank D is
the next one to go into a dire
[675]
situation, it's even less likely
that Bank D can get a
[678]
loan from a third bank.
[680]
Because all the banks are
getting scared now.
[682]
All the banks are saying,
I'm not going to
[683]
loan money to anyone.
[684]
If I can get any cash from
anybody I'm just
[685]
going to keep it.
[686]
So that when it's my turn, when
the market starts looking
[689]
at me, I at least have
a little cash.
[691]
So everyone is frozen.
[692]
Everyone wants to collect their
loans from everyone else
[695]
and no one wants to give
loans to anybody else.
[698]
So that's the situation
we're in.
[700]
And that's the difficulty
that the Fed is
[703]
somehow trying to unwind.
[705]
And I realized I'm out
of time again.
[706]
I will confront that issue
in the next video.
Most Recent Videos:
You can go back to the homepage right here: Homepage





