In some simple models of trade, a country may choose to specialize in the production of a single good. Which is not an argument against specializing in a single good in the real world? Unexpected events such as natural disasters or sudden changes in taste and demand could cripple a single industry. New technology or cheaper substitutes could replace the good. Curved production possibilities curves suggest increasing costs and diminishing returns. Specialization in a single good makes dumping easier and more effective.

Based on the supply and demand theory, why do medical doctors earn higher wages than child-care workers?

1. descriptive statistics quickly describe large amounts of data can predict future stock returns with surprising accuracy statisticians understand non-numeric information, like colors refer mainly to patterns that can be found in data 2. a 15% return on a stock means that 15% of the original purchase price of the stock returns to the seller at the end of the year 15% of the people who purchased the stock will see a return the stock is worth 15% more at the end of the year than at the beginning the stock has lost 15% of its value since it was originally sold 3. a stock purchased on january 1 cost $4.35 per share. the same stock, sold on december 31 of the same year, brought in $4.75 per share. what was the approximate return on this stock? 0.09% 109% 1.09% 9% 4. a stock sells for $6.99 on december 31, providing the seller with a 6% annual return. what was the price of the stock at the beginning of the year? $6.59 $1.16 $7.42 $5.84

Rats that received electric shocks were unlikely to develop ulcers if the