A study finds that the noise from airplanes is harmful; hence, the government imposes a $25 tax on the sale of every airplane. This amount accurately accounts for the external cost of the noise pollution. Before the corrective tax, airplane tickets regularly sold for $190. After the tax is in place, the market price for airplane tickets rises to $195. Because of the tax, the number of airplane tickets sold will decrease . The socially optimal price of airplane tickets is $ . The private market price is $ . A firm selling airplane tickets receives $ after it pays the tax.

Moon flower cosmetics company executives are aware that their asian customer base is interested in advanced skin care treatments beyond moon flower's traditional herbal and organic compounds. moon flower and a large american chemical company are in discussions to create a 50-50 partnership in a new firm, which would create skin care treatments based on innovative chemical formulations that would be marketed both in asia and in the united states. beyond being a cross-border alliance, this partnership can be called a(n)a. nonequity strategic alliance.b. joint venture.c. horizontal complementary alliance.d. equity strategic alliance.