Did Good Corporate Governance Improve Bank Performance During the Financial Crisis?

Let e ⊂ ℝ be a finite union of ℓ + 1 disjoint closed intervals, and denote by ω j the harmonic measure of the j left-most bands. The frequency module for e is the set of all integral combinations of ω 1,..., ω ℓ. Let {ã n, b̃ n} ∞n=-∞ be a point in the isospectral torus for e p̃ n its orthogonal polynomials. Let {a n, b n} ∞n=1 be a half-line Jacobi matrix with a n = ã n,+ δa n, b n = b̃ n + δb n. Suppose and have finite limits as N → ∞ for all ω in the frequency module. If, in addition, these partial sums grow at most subexponentially with respect to ω, then for z ∈ ℂ \ℝ, pn(Z)/P̃n(Z) has a limit as n → ∞. Moreover, we show that there are non-Szego{double acute} class J\u27s for which this holds. © 2012 Springer Science+Business Media, LLC