He is further the co-creator of Risk-Neutral Pricing and of the Binomial Model
for Pricing Derivatives.
The extent to which these approximations introduce bias could be understood by developing a range of models, perhaps using versions of the chain binomial model
or other generalized contagion processes.
For binomial data, the effect is the value of the parameter P in a binomial model
Given that we obtained similar results with each of these two estimators, we will focus on reporting the negative binomial model
results because the coefficient estimates from the NB model are more easily interpretable.
The full report includes a total of 28 tables and figures, such as (for each city) Number of Firms by Year; Negative Binomial Model
Coefficients; Density of Firm Births per Square Mile; Predicted Effects of Station Distance Variables; and more.
2005, Modeling Insurance Surrenders by the Negative Binomial Model
, Working paper.
Results from the repeated-measures binomial model
showed that the propensity for T-males to give whinny calls was significantly lower than that of C-males ([F.
07 Sample size (total = 5,064) 3,540 1,524 Negative Binomial Model
Predicting Number of Visits Outcomes ([dagger]) Estimate SE p-value Average number of visits for health care services, months 1-12 PCP visits 0.
All 8 predictor variables were selected in the binomial model
for each species on the basis of UBRE scores, with the exceptions of soak for Black Sea Bass and Bank Sea Bass and doy for Stenotomus spp.
The second model is a real options analysis known as a binomial model
because the option is an "either/ or," "yes/no" type of decision.
Among the topics are stocks, arbitrage and trading, the extended cost-of-carry model, the multi-period binomial model
, and interest rate swaps.
This can be overcome by using a negative binomial model
that adds a random term that is assumed to be uncorrelated with the model's covariates.