Consider this type of growth: On balanced growth path, an economy grows at 1.8% a year. 0.8% comes from population growth and 1% comes from technology improvement. What are the rates of change of the variables?
1. Number of workers? 2. Rate of depreciation? 3. Output per worker? 4. Volume of capital? 5. Savings rate?
In: Economics
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In: Math
A new material has a measured thermal conductivity k of 200 BTU-in/hr-ft2 -°F. Is this material a thermal insulator or a conductor? Calculate the R and U values for a block of this material that is 3 inches thick. Now sandwich this block of material between two sheets of R-0.8 fiberboard. What is the new effective U value?
In: Mechanical Engineering
In: Economics
A gas expands from point A to B. The expansion consists of two stages.
Stage 1) The gas expands at constant pressure from 15 to 39 litres.
Stage 2) The gas expands from 31 litres to 82 litres with a pressure drop according to the equation; P = 100 - 0.8 V kPa
Calculate the work done on the gas.
In: Physics
A random sample of size n = 40 is selected from a population that has a proportion of successes p = 0.8.
1) Determine the mean proportion of the sampling distribution of the sample proportion.
2) Determine the standard deviation of the sampling distribution of the sample proportion, to 3 decimal places.
3) True or False? The sampling distribution of the sample proportion is approximately normal.
In: Statistics and Probability
Consider a two factor model of expected returns where the risk free rate is 6% and the expected risk premiums on the factor portfolios are 3% and 7%. If the factor portfolios are “ideal” and tradable, determine if an arbitrage opportunity exists for the portfolio given below and specify how can it be exploited.
| portfolio | Bf1 | Bf2 | Expected return |
| A | 1.4 | 0.8 | 0.41 |
In: Computer Science
A company has $105 million in outstanding bonds, and 10 million shares of stock currently trading at $36 per share.The bonds pay an annual coupon rate of 9% and is trading at par. The company's beta is 0.8, its tax rate is 40%, the risk-free rate is 2%, and the market risk premium is 6%. What is this firm's WACC?
In: Finance
The efficiency of a 400-kVA, single-phase, 60-Hz transformer is 98.77% when delivering full-load current at 0.8 power factor, and 99.13% with half-rated current at unity power factor. calculate: (a) The iron loss. (b) the full-load copper loss. (c) the efficiency at 3/4 load, 0.9 power factor
In: Electrical Engineering
A stock has a beta of 1.4, an expected return of 17.2 percent, and lies on the security market line. A risk-free asset is yielding 3.2 percent. You want to create a portfolio that is comprised of the stock and the risk free and will have a portfolio beta of 0.8. What is the expected return on this portfolio?
a) 12.33% b) 13.87% c) 11.20% d) 14.41%
In: Finance