Compute the log returns for nikkei and find the statistics below.

a) find the mean annualized return.
b) find the annualized volatility (standard deviation for the whole sample).
c) find the skewness and kurtosis and explain if there is any asymmetry and fat tails?
d) formulate and test the efficient market hypothesis (emh) using the q test for returns for k=15 autocorrelations.
e) formulate and test the null hypothesis of no volatility clustering using the q test for squared returns for k=15 autocorrelations.

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?

When immigration adds to the size of the domestic labor pool, which of the following is likely to occur? a. wages decrease. b. productivity increases. c. consumption decreases. d. minimum wage increases.

In command economy, who makes production decisions? a. workers b. producers c. consumers d. the government