Lower bound on forward settlement price

49문장 100% 한국어 번역 2명 참여 출처 : 칸아카데미

Lower bound on forward settlement price

In the last video we established a reasonable upper bound on the 1-year forward settlement price of gold.

We established that at $1150 which is essentially the sport price plus the borrowing rate to borrow $1000, plus the carrying cost of the gold.

What I want to do in this video is to think of a reasonable lower bound.

To do that let's imagine a world where instead of the forward settlement price being $1150, let's imagine a world where the forward settlement price is $1050.

It's still higher that the spot price.

Let's think of it from the the point of view of someone who wants to hold gold in a year.

Let's say that you are that someone and right now you have $1000 that you want to use to give you gold.

You want to hold the gold for the long term.

You have 2 options here.

You could just buy gold now.

Buy 1 ounce with your $1000 right now.

When you go forward a year from then your going to have that 1 once of gold plus you're going have to pay the carrying cost.

The safety deposit box and the insurance on the gold.

You're going to have 1 ounce of gold minus $50.

That's what you're going have to pay.

The other option, you say hey look instead of putting my $1000 into gold right now, let me put my $1000 into a risk-free bond. Into a risk-free bond.

Risk-free bond, and at the same time agree to be the buyer on the 1-year forward settlement.

On the 1-year forward contract.

I'm agreed to to be the buyer at $1050.

If you go forward a year, your $1000 risk-free bond is going to give you 5% interest a year.

You're going to have $1050.

This is just the interest on your bond.

Then you can use that to go and buy the gold.

Which you all ready locked in the price by agreeing to be the buyer on the forward contract.

Then you buy the gold.

In both situations you end up with an ounce of gold a year from now starting with your $1000.

In this situation you just have an ounce of gold and you didn't have to pay any carrying cost.

In this situation you have the ounce of gold and you did have to pay carrying cost.

So, clearly any rational person, assuming their buying the gold for the long term, would want to do this situation.

They save $50 over the course of the year.

Really, the rational price, if this were to happen everyone would want to be the buyers over here.

We're talking about $1050 price.

That's right over here.

This was the price in the last example.

Everyone would want to be the buyer on the futures contract or the forward contract.

That would increase the price over there.

Knowing you'd have less buyers on the spot contract.

That would decrease the price over there.

In general this price seems too low.

The price at which people would be neutral is if this price was $50 higher.

Then it becomes completely equivalent.

A rational lower bound given all of this, would have been a price of $1100. $1100.

In general just going back to the last video, a ration upper bound will be the spot price plus the carrying cost and the rate at which someone could borrow money.

A rational lower bound will be the spot price plus the risk-free interest rate and the carrying cost.

In general, the only difference between those upper and lower bound is this rate and this rate. This rate and this rate.

If these were the same the rational price would be the same.

If these both were 10%, then the rational price would $1150.

These were both 5% the rational price, the upper and the lower bound would have been $1100.

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Lower bound on forward settlement price발음듣기

In the last video we established a reasonable upper bound on the 1-year forward settlement price of gold.발음듣기

We established that at $1150 which is essentially the sport price plus the borrowing rate to borrow $1000, plus the carrying cost of the gold.발음듣기

What I want to do in this video is to think of a reasonable lower bound.발음듣기

To do that let's imagine a world where instead of the forward settlement price being $1150, let's imagine a world where the forward settlement price is $1050.발음듣기

It's still higher that the spot price.발음듣기

Let's think of it from the the point of view of someone who wants to hold gold in a year.발음듣기

Let's say that you are that someone and right now you have $1000 that you want to use to give you gold.발음듣기

You want to hold the gold for the long term.발음듣기

You have 2 options here.발음듣기

You could just buy gold now.발음듣기

Buy 1 ounce with your $1000 right now.발음듣기

When you go forward a year from then your going to have that 1 once of gold plus you're going have to pay the carrying cost.발음듣기

The safety deposit box and the insurance on the gold.발음듣기

You're going to have 1 ounce of gold minus $50.발음듣기

That's what you're going have to pay.발음듣기

The other option, you say hey look instead of putting my $1000 into gold right now, let me put my $1000 into a risk-free bond. Into a risk-free bond.발음듣기

Risk-free bond, and at the same time agree to be the buyer on the 1-year forward settlement.발음듣기

On the 1-year forward contract.발음듣기

I'm agreed to to be the buyer at $1050.발음듣기

If you go forward a year, your $1000 risk-free bond is going to give you 5% interest a year.발음듣기

You're going to have $1050.발음듣기

This is just the interest on your bond.발음듣기

Then you can use that to go and buy the gold.발음듣기

Which you all ready locked in the price by agreeing to be the buyer on the forward contract.발음듣기

Then you buy the gold.발음듣기

In both situations you end up with an ounce of gold a year from now starting with your $1000.발음듣기

In this situation you just have an ounce of gold and you didn't have to pay any carrying cost.발음듣기

In this situation you have the ounce of gold and you did have to pay carrying cost.발음듣기

So, clearly any rational person, assuming their buying the gold for the long term, would want to do this situation.발음듣기

They save $50 over the course of the year.발음듣기

Really, the rational price, if this were to happen everyone would want to be the buyers over here.발음듣기

We're talking about $1050 price.발음듣기

That's right over here.발음듣기

This was the price in the last example.발음듣기

Everyone would want to be the buyer on the futures contract or the forward contract.발음듣기

That would increase the price over there.발음듣기

Knowing you'd have less buyers on the spot contract.발음듣기

That would decrease the price over there.발음듣기

In general this price seems too low.발음듣기

The price at which people would be neutral is if this price was $50 higher.발음듣기

Then it becomes completely equivalent.발음듣기

A rational lower bound given all of this, would have been a price of $1100. $1100.발음듣기

In general just going back to the last video, a ration upper bound will be the spot price plus the carrying cost and the rate at which someone could borrow money.발음듣기

A rational lower bound will be the spot price plus the risk-free interest rate and the carrying cost.발음듣기

In general, the only difference between those upper and lower bound is this rate and this rate. This rate and this rate.발음듣기

If these were the same the rational price would be the same.발음듣기

If these both were 10%, then the rational price would $1150.발음듣기

These were both 5% the rational price, the upper and the lower bound would have been $1100.발음듣기

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