CONTENTS XV PAGES prices and money incomes, 129. Irregularity of capital exports, 129. A country in the early states of borrowing has an excess of imports; in the later stages an excess of exports, 130. A precise balancing of the losses and gains arising out of the shifts from more to less favorable barter terms of trade is impossible, 131. Freight payments in the international balance sheet, 132. Freight payments affect the barter terms of trade in a manner similar to payment of tourists’ expenditures. Payment for freight services no more signify a loss to a country than payments for merchandise imports, 134. Circumstances under which the burden of shipping charges may be transferred to the exporting country, 135. The practise of valuing imports C. I. F. and exports F. O. B. leads to some statistical difficulties, 136. Illus- trations from the trade between Australia and Great Britain; between United States and Great Britain, 137. CHAPTER 13 Duties oN IMPORTS AND THE BArTER TERMS OF TRADE . : Effects of a revenue tax on imports, 141; the barter terms of trade become more favorable to the country imposing the tax. A protective tax on imports exerts a similar influence, 144. The loss in other directions must be balanced against this gain from more favorable barter terms, 145. In any case the gain is certain only when other countries do not resort to similar duties, 147. The position of the United States with regard to these possibili- ties, 148. 141-148 PART 11 PROBLEMS OF VERIFICATION CHAPTER 14 INTRODUCTORY . 151-160 The abstract method of analysis useful only as a preliminary approach, 151. Some aspects of international trade patently in accord with theory, 152. Is there a tendency to world-wide equalization of prices and wages? 153. Persistence of wide differ- ences in prices and wages illustrated by Great Britain and India; by Great Britain and the Continent of Europe, 154. High or low money wages are not a factor in promoting or retarding inter- national trade, 155. Differences in wages and prices between Western Europe and the Orient, and their relation to the deduc- tions of theory, 156.