Answer and Explanation:
$102100 is the foreign earned income exclusion limit for 2017 , therefore Helen who is a U.S. citizen can exclude $102100 from gross income in the U.S.
Answer:
1
Explanation:
A perfect competition is characterized by many buyers and sellers of homogenous goods and services. Market prices are set by the forces of demand and supply. There are no barriers to entry or exit of firms into the industry.
In the long run, firms earn zero economic profit. If in the short run firms are earning economic profit, in the long run firms would enter into the industry. This would drive economic profit to zero.
Also, if in the short run, firms are earning economic loss, in the long run, firms would exit the industry until economic profit falls to zero.
In a perfect monopoly, there is only one firm operating in the industry
In a monopolistic competition, differentiated products are sold
In an oligopoly, there are few large firms
Answer:
Not change
Explanation:
In the long run we expect firms to earn zero profits. With competitive markets for both inputs and output, and with constant returns to scale, a doubling of all inputs would lead to twice as much output, twice as much revenue, and twice as much cost.
