Secular Equation

The secular equation $\sum_{j = 1}^{J} \frac{1}{w _{j} - μ} = 0$ determines equilibrium diversity from the weight structure. Generalizes equal-weight curvature to arbitrary weights.

Foundations70

Impact Score

Economic Importance

8.0

Novelty

8.0

Theoretical Coverage

7.0

Empirical Coverage

5.0

Article Quality

10.0

Score Reasoning

Importance: Generalizes equal-weight CES to arbitrary weights via the secular equation. Essential for all applied work since real economies always have heterogeneous weights.
Novelty: New application of matrix perturbation theory's secular equation to CES isoquant curvature. The interlacing property and its economic implications (curvature bounded by weight extremes) are novel.
Quality: Excellent mathematical exposition with clean statement, interlacing property, economic interpretation, and extensive cross-links to 6 related pages. One of the best-written articles.