If 10 firms share the sales of the market equally, the four-firm concentration ratio is ________ percent.
A) 100
B) 40
C) 10
D) 5
Question 2
The figure above shows the market for milk in Cowland. A subsidy paid to producers of 1 per gallon of milk is introduced. If there are no external costs and no external benefits, the quantity of milk sold is
A) greater than the efficient level of output.
B) less than the efficient level of output.
C) 100 million gallons greater than the efficient level of output.
D) the efficient level of output.
Independent assortment of chromosomes at meiosis explains Mendel’s ratio
Diverse living organisms share common chemical features
The Pleiades, an open cluster of stars in the constellation of Taurus. These stars share a common mo
Identical twins share 100 percent of their segregating genes.
A slave market in Marrakesh, Morocco. This lithograph is from the 1800s.
GDP per Capita in the United States, 1870–2009 (Ratio Scale)