Why is a trade barrier considered protectionist?

The 39 percent and 38 percent tax rates both represent what is called a tax "bubble." suppose the government wanted to lower the upper threshold of the 39 percent marginal tax bracket from $335,000 to $208,000. what would the new 39 percent bubble rate have to be? (do not round intermediate calculations. enter your answer as a percent rounded to 2 decimal places,e.g., 32.16.)

On january 1, eastern college received $1,350,000 from its students for the spring semester that it recorded in unearned tuition and fees. the term spans four months beginning on january 2 and the college spreads the revenue evenly over the months of the term. assuming the college prepares adjustments monthly, what amount of tuition revenue should the college recognize on february 28?

Carlton industries is considering a new project that they plan to price at $74.00 per unit. the variable costs are estimated at $39.22 per unit and total fixed costs are estimated at $12,085. the initial investment required is $8,000 and the project has an estimated life of 4 years. the firm requires a return of 8 percent. ignore the effect of taxes. what is the degree of operating leverage at the financial break-even level of output?