Gottfried Haberler, “[Review of International Trade, by Barrett Whale]” (1934)

Haberler’s short review evaluates Barrett Whale’s 1932 introduction to international trade as an unusually successful reconciliation of accessibility and theoretical precision. His near-complete agreement explains the brevity of his criticism: the book’s importance lies in its balanced exposition, careful qualifications, and informed judgment, rather than in a simplified policy formula.

Mr. Whale does not sacrifice scientific precision in the interests of popularisation.

This is the review’s governing criterion. Haberler warns that popular economics too readily substitutes broadly useful generalizations for propositions whose limits must be specified. He contrasts Whale’s method with Cassel’s popular writings, singling out purchasing power parity as a useful but oversimplified proposition. Whale preserves its explanatory value while making the necessary qualifications.

Haberler then follows the book’s progression from international payments and foreign exchanges to trade theory. Whale combines balance-of-payments theory with qualified purchasing power parity to explain how external equilibrium is maintained or restored after disturbance. The conceptual gain is a common account of adjustment across monetary regimes:

The working of the mechanism under the gold standard and with inconvertible paper currencies is in principle the same. These are just two special cases, distinguished by the institutional setting.

Institutional differences thus become cases within a unified theory rather than grounds for separate explanations. Haberler similarly praises Whale’s transformation of comparative-cost doctrine into a Cassel–Ohlin-type general-equilibrium theory, retaining the important conclusions about the advantages of the international division of labour.

The review’s final substantive movement concerns the book’s second half: arguments for protection, tariff bargaining, and alternative forms of the most-favoured-nation clause. Here the same commitment to qualification shapes Haberler’s assessment of Whale’s free-trade position.

But here again he avoids dogmatic exaggerations and admits freely that situations are possible and indeed actually occur in which a certain measure of protection is economically advantageous.

Haberler stresses that acknowledging such exceptions does not make protection a practicable general policy: Whale finds them relatively unimportant, difficult to identify, and beset by nearly insurmountable administrative problems. The review’s relevance lies in this connection between theoretical nuance and policy judgment. Haberler endorses both a modern synthesis of trade theory and a mode of public exposition that makes its results accessible without concealing their conditions or exceptions.