Now showing items 1-10 of 15
The effect of imputed values on the distribution of the goodness-of-fit chi-square statistic
(Elsevier, 1987)
A method used to compensate for nonresponse is to impute missing values; that is, to replace each missing value with a respondent value selected from all observed values or from a subset of observed values. The imputation ...
Characterization of optima in smooth Pareto economic systems
(Elsevier, 1975)
Simple techniques of calculus and geometry are used to study and characterize the optima of pure exchange economies in which the utility functions are smooth but not necessarily convex. It is also shown how one can reduce ...
The choice of a log-linear model using a Cp-type statistic
(Elsevier, 1984-08)
Most methods of selecting an appropriate log-linear model for categorical data are sensitive to the underlying distributional assumptions. However, there are many situations in which the assumption that the data are randomly ...
Modeling and analyzing HIV transmission: the effect of contact patterns
(Elsevier, 1988-12)
A compartmental model is presented for the spread of HIV in a homosexual population divided into subgroups by degree of sexual activity. The model includes constant recruitment rates for the susceptibles in the subgroups. ...
Counting Groves-Ledyard equilibria via degree theory
(Elsevier, 1983-10)
We study the Groves-Ledyard mechanism for determining optimal amounts of public goods in economies whose agents have the most general class of preferences for which a Pareto amount of public goods can be computed independently ...
The spread and persistence of infectious diseases in structured populations
(Elsevier, 1988)
A basic assumption of many epidemic models is that populations are composed of a homogeneous group of randomly mixing individuals. This is not a realistic assumption. Most actual populations are divided into a number of ...
The stochastic SI model with recruitment and deaths I. comparison with the closed SIS model
(Elsevier, 1993)
We compare the stochastic and deterministic version of an SI model with recuitment, background deaths, and deaths due to the disease. For the stochastic version, analysis of the mean number of susceptibles, m, and infecteds, ...
Random Walks Associated with Non-Divergence Form Elliptic Equations
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 2000-04)
This paper is concerned with the study of the diffusion process associated with a nondivergence form elliptic operator in d dimensions, d ≥2. The authors introduce a new technique for studying the diffusion, based on the ...