Gold star co. and silver star co. both manage their cash flows according to the miller orr model. gold star's daily cash flow is controlled between $100,000 and $200,000, whereas silver star's daily cash flow is controlled between $150,000 and $300,000. the annual interest rates gold star and silver star can get are 10 percent and 9 percent, respectively, and the costs per transaction of trading securities are $2,000 and $2,500, respectively. a. what are their respective target cash balances? b. which firm's daily cash flow is more volatile?

Feedback systems do not always involve negative feedback. economic inflation, which is evidenced by continually rising prices, is a positive feedback system. a positive feedback control system, as shown on the right, adds the feedback signal to the input signal, and the resulting signal is used as the input to the process. a simple model of the price-wage inflationary spiral is shown on the right. add additional feedback loops, such as legislative control or control of the tax rate, to stabilize the system. it is assumed that an increase in workers’ salaries, after some time delay, results an increase in prices. under what conditions could prices be stabilized by falsifying or delaying the availability of cost-ofliving data? how would a national wage and price economic guideline program affect the feedback system?