Rule of 70.

Question

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Answer 1

Question

Chapter 23, Problem 1FT

Subpart (a):

To determine

Rule of 70.

Subpart (a):

Expert Solution

Explanation of Solution

By the rule of 70, if one invests $3000 in a bank account and earns 2% real annual return on average, then it would take 35 years (702) until it is worth $6,000. This $6,000 would take another 35 years (702) to double up to $12,000 by the rule of 70. Therefore, $3,000 would take 70 years (35+35) until it was worth $12,000.

Economics Concept Introduction

Concept introduction:

Rule of 70: By the rule of 70, if the rate of return which is the annual percentage increase in value including dividends is x% of an investment, then the doubling time is 70x years.

Subpart (b):

To determine

Rule of 70.

Subpart (b):

Expert Solution

Explanation of Solution

By the rule of 70, if one invests $3000 in mutual and earns 7% real annual return on average, then it would take 10 years (707) until it is worth $6,000. This $6000 would take another 10 years (707) to double up to $12,000 by the rule of 70. Therefore, $3000 would take 20 years (10+10) until it was worth $12,000.

Economics Concept Introduction

Concept introduction:

Rule of 70: By the rule of 70, if the rate of return which is the annual percentage increase in value including dividends is x% of an investment, then the doubling time is 70x years.

Subpart (c):

To determine

Rule of 70.

Subpart (c):

Expert Solution

Explanation of Solution

By the rule of 70, if one invests $3000 together in bank and mutual fund and earns 5% real annual return on average, then it would take 14 years (705) until it is worth $6,000. This $6000 would take another 14 years (705) to double up to $12,000 by the rule of 70 Therefore, $3000 would take 28 years (14+14) until it was worth $12,000.

Economics Concept Introduction

Concept introduction:

Rule of 70: By the rule of 70, if the rate of return which is the annual percentage increase in value including dividends is x% of an investment, then the doubling time is 70x years.

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Please answer questions D-H, I have already answered A , B,C but it may help you to still solve them yourself. Thank you!

2. A firm’s production function is given by:Q = 10KLThe unit capital and labour costs are 2 and 1 pounds respectively. The firm is contracted to produce2000 units.(a) Write out the optimisation problem of the firm. (b) Express this problem using a Lagrangian function. (c) Find values of K and L which fulfil the contract with minimal cost to the firm. (d) Calculate the total cost to the firm.

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Answer 2

Question

Chapter 23, Problem 1FT

Subpart (a):

To determine

Rule of 70.

Subpart (a):

Expert Solution

Explanation of Solution

By the rule of 70, if one invests $3000 in a bank account and earns 2% real annual return on average, then it would take 35 years (702) until it is worth $6,000. This $6,000 would take another 35 years (702) to double up to $12,000 by the rule of 70. Therefore, $3,000 would take 70 years (35+35) until it was worth $12,000.

Economics Concept Introduction

Concept introduction:

Rule of 70: By the rule of 70, if the rate of return which is the annual percentage increase in value including dividends is x% of an investment, then the doubling time is 70x years.

Subpart (b):

To determine

Rule of 70.

Subpart (b):

Expert Solution

Explanation of Solution

By the rule of 70, if one invests $3000 in mutual and earns 7% real annual return on average, then it would take 10 years (707) until it is worth $6,000. This $6000 would take another 10 years (707) to double up to $12,000 by the rule of 70. Therefore, $3000 would take 20 years (10+10) until it was worth $12,000.

Economics Concept Introduction

Concept introduction:

Rule of 70: By the rule of 70, if the rate of return which is the annual percentage increase in value including dividends is x% of an investment, then the doubling time is 70x years.

Subpart (c):

To determine

Rule of 70.

Subpart (c):

Expert Solution

Explanation of Solution

By the rule of 70, if one invests $3000 together in bank and mutual fund and earns 5% real annual return on average, then it would take 14 years (705) until it is worth $6,000. This $6000 would take another 14 years (705) to double up to $12,000 by the rule of 70 Therefore, $3000 would take 28 years (14+14) until it was worth $12,000.

Economics Concept Introduction

Concept introduction:

Rule of 70: By the rule of 70, if the rate of return which is the annual percentage increase in value including dividends is x% of an investment, then the doubling time is 70x years.

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Answer 3

Question

Chapter 23, Problem 1FT

Subpart (a):

To determine

Rule of 70.

Subpart (a):

Expert Solution

Explanation of Solution

By the rule of 70, if one invests $3000 in a bank account and earns 2% real annual return on average, then it would take 35 years (702) until it is worth $6,000. This $6,000 would take another 35 years (702) to double up to $12,000 by the rule of 70. Therefore, $3,000 would take 70 years (35+35) until it was worth $12,000.

Economics Concept Introduction

Concept introduction:

Rule of 70: By the rule of 70, if the rate of return which is the annual percentage increase in value including dividends is x% of an investment, then the doubling time is 70x years.

Subpart (b):

To determine

Rule of 70.

Subpart (b):

Expert Solution

Explanation of Solution

By the rule of 70, if one invests $3000 in mutual and earns 7% real annual return on average, then it would take 10 years (707) until it is worth $6,000. This $6000 would take another 10 years (707) to double up to $12,000 by the rule of 70. Therefore, $3000 would take 20 years (10+10) until it was worth $12,000.

Economics Concept Introduction

Concept introduction:

Rule of 70: By the rule of 70, if the rate of return which is the annual percentage increase in value including dividends is x% of an investment, then the doubling time is 70x years.

Subpart (c):

To determine

Rule of 70.

Subpart (c):

Expert Solution

Explanation of Solution

By the rule of 70, if one invests $3000 together in bank and mutual fund and earns 5% real annual return on average, then it would take 14 years (705) until it is worth $6,000. This $6000 would take another 14 years (705) to double up to $12,000 by the rule of 70 Therefore, $3000 would take 28 years (14+14) until it was worth $12,000.

Economics Concept Introduction

Concept introduction:

Rule of 70: By the rule of 70, if the rate of return which is the annual percentage increase in value including dividends is x% of an investment, then the doubling time is 70x years.

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Question

Chapter 23, Problem 1FT

Subpart (a):

To determine

Rule of 70.

Subpart (a):

Expert Solution

Explanation of Solution

By the rule of 70, if one invests $3000 in a bank account and earns 2% real annual return on average, then it would take 35 years (702) until it is worth $6,000. This $6,000 would take another 35 years (702) to double up to $12,000 by the rule of 70. Therefore, $3,000 would take 70 years (35+35) until it was worth $12,000.

Economics Concept Introduction

Concept introduction:

Rule of 70: By the rule of 70, if the rate of return which is the annual percentage increase in value including dividends is x% of an investment, then the doubling time is 70x years.

Subpart (b):

To determine

Rule of 70.

Subpart (b):

Expert Solution

Explanation of Solution

By the rule of 70, if one invests $3000 in mutual and earns 7% real annual return on average, then it would take 10 years (707) until it is worth $6,000. This $6000 would take another 10 years (707) to double up to $12,000 by the rule of 70. Therefore, $3000 would take 20 years (10+10) until it was worth $12,000.

Economics Concept Introduction

Concept introduction:

Rule of 70: By the rule of 70, if the rate of return which is the annual percentage increase in value including dividends is x% of an investment, then the doubling time is 70x years.

Subpart (c):

To determine

Rule of 70.

Subpart (c):

Expert Solution

Explanation of Solution

By the rule of 70, if one invests $3000 together in bank and mutual fund and earns 5% real annual return on average, then it would take 14 years (705) until it is worth $6,000. This $6000 would take another 14 years (705) to double up to $12,000 by the rule of 70 Therefore, $3000 would take 28 years (14+14) until it was worth $12,000.

Economics Concept Introduction

Concept introduction:

Rule of 70: By the rule of 70, if the rate of return which is the annual percentage increase in value including dividends is x% of an investment, then the doubling time is 70x years.

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Chapter 23, Problem 1FT

Subpart (a):

To determine

Rule of 70.

Subpart (a):

Expert Solution

Explanation of Solution

By the rule of 70, if one invests $3000 in a bank account and earns 2% real annual return on average, then it would take 35 years (702) until it is worth $6,000. This $6,000 would take another 35 years (702) to double up to $12,000 by the rule of 70. Therefore, $3,000 would take 70 years (35+35) until it was worth $12,000.

Economics Concept Introduction

Concept introduction:

Rule of 70: By the rule of 70, if the rate of return which is the annual percentage increase in value including dividends is x% of an investment, then the doubling time is 70x years.

Subpart (b):

To determine

Rule of 70.

Subpart (b):

Expert Solution

Explanation of Solution

By the rule of 70, if one invests $3000 in mutual and earns 7% real annual return on average, then it would take 10 years (707) until it is worth $6,000. This $6000 would take another 10 years (707) to double up to $12,000 by the rule of 70. Therefore, $3000 would take 20 years (10+10) until it was worth $12,000.

Economics Concept Introduction

Concept introduction:

Rule of 70: By the rule of 70, if the rate of return which is the annual percentage increase in value including dividends is x% of an investment, then the doubling time is 70x years.

Subpart (c):

To determine

Rule of 70.

Subpart (c):

Expert Solution

Explanation of Solution

By the rule of 70, if one invests $3000 together in bank and mutual fund and earns 5% real annual return on average, then it would take 14 years (705) until it is worth $6,000. This $6000 would take another 14 years (705) to double up to $12,000 by the rule of 70 Therefore, $3000 would take 28 years (14+14) until it was worth $12,000.

Economics Concept Introduction

Concept introduction:

Rule of 70: By the rule of 70, if the rate of return which is the annual percentage increase in value including dividends is x% of an investment, then the doubling time is 70x years.

Answer 6

Chapter 23, Problem 1FT

Subpart (a):

To determine

Rule of 70.

Subpart (a):

Expert Solution

Explanation of Solution

By the rule of 70, if one invests $3000 in a bank account and earns 2% real annual return on average, then it would take 35 years (702) until it is worth $6,000. This $6,000 would take another 35 years (702) to double up to $12,000 by the rule of 70. Therefore, $3,000 would take 70 years (35+35) until it was worth $12,000.

Economics Concept Introduction

Concept introduction:

Rule of 70: By the rule of 70, if the rate of return which is the annual percentage increase in value including dividends is x% of an investment, then the doubling time is 70x years.

Answer 7

Chapter 23, Problem 1FT

Subpart (a):

To determine

Rule of 70.

Answer 8

Subpart (a):

Expert Solution

Explanation of Solution

By the rule of 70, if one invests $3000 in a bank account and earns 2% real annual return on average, then it would take 35 years (702) until it is worth $6,000. This $6,000 would take another 35 years (702) to double up to $12,000 by the rule of 70. Therefore, $3,000 would take 70 years (35+35) until it was worth $12,000.

Answer 9

Subpart (a):

Expert Solution

Answer 10

Subpart (a):

Expert Solution

Answer 11

Expert Solution

Answer 12

Economics Concept Introduction

Concept introduction:

Rule of 70: By the rule of 70, if the rate of return which is the annual percentage increase in value including dividends is x% of an investment, then the doubling time is 70x years.

Answer 13

Subpart (b):

To determine

Rule of 70.

Subpart (b):

Expert Solution

Explanation of Solution

By the rule of 70, if one invests $3000 in mutual and earns 7% real annual return on average, then it would take 10 years (707) until it is worth $6,000. This $6000 would take another 10 years (707) to double up to $12,000 by the rule of 70. Therefore, $3000 would take 20 years (10+10) until it was worth $12,000.

Economics Concept Introduction

Concept introduction:

Rule of 70: By the rule of 70, if the rate of return which is the annual percentage increase in value including dividends is x% of an investment, then the doubling time is 70x years.

Answer 14

Subpart (b):

To determine

Rule of 70.

Answer 15

Subpart (b):

Expert Solution

Explanation of Solution

By the rule of 70, if one invests $3000 in mutual and earns 7% real annual return on average, then it would take 10 years (707) until it is worth $6,000. This $6000 would take another 10 years (707) to double up to $12,000 by the rule of 70. Therefore, $3000 would take 20 years (10+10) until it was worth $12,000.

Answer 16

Subpart (b):

Expert Solution

Answer 17

Subpart (b):

Expert Solution

Answer 18

Expert Solution

Answer 19

Economics Concept Introduction

Concept introduction:

Rule of 70: By the rule of 70, if the rate of return which is the annual percentage increase in value including dividends is x% of an investment, then the doubling time is 70x years.

Answer 20

Subpart (c):

To determine

Rule of 70.

Subpart (c):

Expert Solution

Explanation of Solution

By the rule of 70, if one invests $3000 together in bank and mutual fund and earns 5% real annual return on average, then it would take 14 years (705) until it is worth $6,000. This $6000 would take another 14 years (705) to double up to $12,000 by the rule of 70 Therefore, $3000 would take 28 years (14+14) until it was worth $12,000.

Economics Concept Introduction

Concept introduction:

Rule of 70: By the rule of 70, if the rate of return which is the annual percentage increase in value including dividends is x% of an investment, then the doubling time is 70x years.

Answer 21

Subpart (c):

To determine

Rule of 70.

Answer 22

Subpart (c):

Expert Solution

Explanation of Solution

By the rule of 70, if one invests $3000 together in bank and mutual fund and earns 5% real annual return on average, then it would take 14 years (705) until it is worth $6,000. This $6000 would take another 14 years (705) to double up to $12,000 by the rule of 70 Therefore, $3000 would take 28 years (14+14) until it was worth $12,000.

Answer 23

Subpart (c):

Expert Solution

Answer 24

Subpart (c):

Expert Solution

Answer 25

Expert Solution

Answer 26

Economics Concept Introduction

Concept introduction:

Rule of 70: By the rule of 70, if the rate of return which is the annual percentage increase in value including dividends is x% of an investment, then the doubling time is 70x years.