Between 1981 and 2000, annual rates of growth of per capita real gdp in advanced nations remained above or close to growth rates in emerging and developing nations, but since 2000, this relationship has been reversed. in addition, over the entire 1981-2017 period, average rates of population growth have been higher in nearly all emerging and developing nations than in advanced nations. what do these facts tell us about the average rate of growth of real gdp since 2000 in emerging and developing nations compared with advanced nations? because emerging and developing nations have had both higher average growth of per capita real gdp and higher average population growth than advanced nations since 2000,

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?