政治经济学若干未决问题论集

Of these Essays, which were written in 1829 and 1830, the fifth alone has been previously printed. The other four have hitherto remained in manuscript, because, during the temporary suspension of public interest in the species of discussion to which they belong, there was no inducement to their publication. They are now published (with a few merely verbal alterations) under the impression, that the controversies excited by Colonel Torrens' _Budget_ have again called the attention of political economists to the discussions of the abstract science: and from the additional consideration, that the first paper relates expressly to the point upon which the question at issue between Colonel Torrens and his antagonists has principally turned. From that paper it will be seen that opinions identical in principle with those promulgated by Colonel Torrens (there would probably be considerable difference as to the extent of their practical application) have been held by the writer for more than fifteen years: although he cannot claim to himself the original conception, but only the elaboration, of the fundamental doctrine of the Essay. A prejudice appears to exist in many quarters against the theory in question, on the supposition of its being opposed to one of the most valuable results of modern political philosophy, the doctrine of Freedom of Trade between nation and nation. The opinions now laid before the reader are presented as corollaries necessarily following from the principles upon which Free Trade itself rests. The writer has also been careful to point out, that from these opinions no justification can be derived for any _protecting_ duty, or other preference given to domestic over foreign industry.…