226. What is the effect of the imposition of a tribute by one country on another upon the course of trade between them, and the terms on which they exchange commodities; and why?

227. For what reasons may a nation's exports habitually exceed or fall short of its imports?

228. Explain the real and nominal exchange.

229. Expound Mr. Mill's theory of the influence which a convertible currency exercises on foreign trade.

230. What is the effect of a depreciated currency on (1) foreign trade, and (2) the exchanges?

Interest.

231. How does the general rate of interest determine the selling price of stocks and land?

232. Is there any relation between the rate of interest and the value of money?

233. What are the relations of interest and profit? On what causes does the rate of interest depend?

234. “High interest means bad security.” Comment on this saying.