This paper considers the robustness of optimal decisions in a model of monopoly and a model of competitive equilibrium in a securities market. Robustness, defined as payoffs being continuous with respect to perturbations in the underlying model, fails to hold for either model. Decision rules are...

Sociological commentaries on the future are frequently built around the claim that we are witnessing the beginning of a new social phenomenon as a result of an existing one coming to an end. Recent examples of discussions framed in terms of new beginnings include reference to the emergence of...

This paper presents a generalized pre-averaging approach for estimating the integrated volatility. This approach also provides consistent estimators of other powers of volatility – in particular, it gives feasible ways to consistently estimate the asymptotic variance of the estimator of the...

To distinguish continuous from discontinuous evolutionary change, a relation of nearness between phenotypes is needed. Such a relation is based on the probability of one phenotype being accessible from another through changes in the genotype. This is exemplified by calculating the shape...

None

This paper examines the trends and differentials in school educational attainment in Kerala, the State that ranks right on top in terms of human development in India. The trend analysis is based on a cohort-level comparison of educational attainment while the differential analysis is done using...