What is the total cost in this outcome (Firm A's total cost + Firm B's total cost)?What is the total cost in the efficient outcome (assuming that the price is $3 and four units are produced in total)?<br/>______

A country produces only pencils and erasers. Pencil production is allocatively efficient if the marginal ________ of a pencil equals the marginal ________ of ________. A: cost; benefit; an eraser B: cost; cost; an eraser C: benefit; benefit; an eraser D: benefit; cost; a pencil

When<br/>the marginal benefit and marginal cost of sodas are equal, then<br/>____. A: the<br/>production of sodas might be allocatively efficient but it is<br/>definitely production inefficient B: the<br/>allocatively inefficient amount of sodas is being produced C: more<br/>sodas should be produced to reach the allocatively efficient quantity D: the<br/>allocatively efficient amount of sodas is being produced

Because the fuel cell is so much more efficient that the internal combustion engine, fueling a fuel cell car can cost around the same as fueling a gasoline car.

Recent studies show that employees who take vacation time are ________ than those who do not. A: efficient B: most efficient C: more efficient D: least efficient

In the above figure, when 2000 bicycles are produced each month, we can see that A: the marginal benefit from another bicycle is greater than the marginal cost of another bicycle. B: more bicycles should be produced to reach the allocatively efficient level of output. C: the economy is very efficient at the production of bicycles because the marginal benefit exceeds the marginal cost. D: Both answers A and B are correct.

Fixed Cost，Veriable Cost，Explicit Cost，Implicit Cost，Opportunity Cost，Sunk Cost，Economic Profit，Normal Profit，Average Cost，Margial Cost

The<br/>Coase theorem states that ____. A: the<br/>level of pollution should be equal to zero to maximize social net<br/>benefit B: if<br/>property rights exist and transactions costs are low, private<br/>transactions are efficient C: the<br/>efficient level of output is where marginal external cost equals<br/>marginal external benefit D: the<br/>best way to limit pollution is by taxing producers who pollute

In the discussion, the Internet brings us so much convenience EXCEPT ____________.‏‌‏ A: having discussion whenever we like and wherever we are B: being cost effective and time efficient C: enabling us to establish dual personality in the virtual world D: prompting the emergence of SOHO

This book______me twenty dollars. A: is cost B: was cost C: cost D: have been cost