Explain why monopolies do exist?

The market for corn in country a is highly competitive. at the current market price of $5/bushel there is a shortage of 100,000 bushels of corn in this country. media reports claim that the price of corn will rise drastically in the near future. according to these reports, the neighboring country b had witnessed a similar situation recently. at the same price, the shortage in country b was also 100,000 bushels and eventually the equilibrium price in b went up to $10/bushel. both countries are known to have equal number of corn producers and the market supply of corn is identical at all prices. this, combined with the fact that consumers in the two countries also have similar tastes and preferences, led the media to conclude that the price of corn in country a would soon be as high as $10/bushel. the new equilibrium price turns out to be below $10/bushel, what inferences can be drawn?

Accublade castings inc. casts blades for turbine engines. within the casting department, alloy is first melted in a crucible, then poured into molds to produce the castings. on may 1, there were 230 pounds of alloy in process, which were 60% complete as to conversion. the work in process balance for these 230 pounds was $32,844, determined as follows: exercises during may, the casting department was charged $350,000 for 2,500 pounds of alloy and $19,840 for direct labor. factory overhead is applied to the department at a rate of 150% of direct labor. the department transferred out 2,530 pounds of finished castings to the machining department. the may 31 inventory in process was 44% complete as to conversion. prepare the following may journal entries for the casting department: the materials charged to production the conversion costs charged to production the completed production transferred to the machining department determine the work in process"casting department may 31 balance.

Jallouk corporation has two different bonds currently outstanding. bond m has a face value of $50,000 and matures in 20 years. the bond makes no payments for the first six years, then pays $2,100 every six months over the subsequent eight years, and finally pays $2,400 every six months over the last six years. bond n also has a face value of $50,000 and a maturity of 20 years; it makes no coupon payments over the life of the bond. the required return on both these bonds is 10 percent compounded semiannually. what is the current price of bond m and bond n?