Australia can produce 0 tons of coal and 20 tons of steel or 100 tons of coal and 0 tons of steel, or any linear combination thereof. China can produce 0 tons of coal and 100 tons of steel or 10 tons of coal and 0 tons of steel, or any linear combination thereof. Suppose the countries are completely specializing by only producing the good for which they have the comparative advantage. If trade between the two countries takes place, what is the maximum price at which a ton of coal would trade between these two countries

Suppose an economist believes that the price level in the economy is directly related to the money supply, or the amount of money circulating in the economy. the economist proposes the following relationship: p=a x m - p=price level - m=money supply - a=a composite of other factors, including real gdp, that change very slowly over time. how might an economist gather empirical data to test the proposed relationship between money and the price level? an economist would persuade the federal reserve to change the money supply to various levels, and observe the resulting changes in the price level. unlike researchers in the hard sciences, economists cannot study complex relationships using data. economists do not usually develop theoretical models of the economy but only analyze summary statistics about the current state of the economy. an economist would look for data on past changes in the money supply, and note the resulting changes in the price level

Which investment has the liquidity and can be converted into cash easily?

Environmentalists are concerned about emissions of sulfur dioxide into the air. the average number of days per year in which sulfur dioxide levels exceed 150 milligrams per cubic meter in milan, italy, is 29. the number of days per year in which emission limits are exceeded is normally distributed with a standard deviation of 4.0 days. what percentage of the years would exceed 37 days?