Lawrence A. Harris

Learn More
In the second half of year 2,000, the U.S. equity and options markets will switch to decimal pricing. Following the switch, and barring regulatory intervention, competition will likely drive the minimum price increment (tick size) down to a penny. This paper surveys the effects that trading on pennies will have on investors, dealers, brokers, exchanges, and(More)
We discuss Lagrange interpolation on two sets of nodes in two dimensions where the coordinates of the nodes are Chebyshev points having either the same or opposite parity. We use a formula of Xu for Lagrange poly-nomials to obtain a general interpolation theorem for bivariate polynomials at either set of Chebyshev nodes. An extra term must be added to the(More)
Let φ : (−∞, ∞) → (0, ∞) be a given continuous even function and let m be a positive integer. We show that, with some additional restrictions on φ, there exist decreasing sequences x where equality holds with alternating signs at the corresponding sequence of points (and also at ±∞ for Q). Moreover, for any polynomial p of degree at most m, a) if |p(x j)| ≤(More)