I. Purpose and basis of the article, 307. — II. Croce's intellectual development, 309. — III. The two meanings of “economics” in Croce's work, 311. — IV. The Pareto-Croce polemic on the “economic principle,” 314. — V. The “philosophy of the practical” and economic science, 317. — VI. Croce's classification of science, 321. — VII. Conclusion: comparison with Robbins, 325; final definition, 327; its scientific and practical consequences, 327.