The effect of cheap talk in partnership games on the evolutionary dynamics of homogeneous populations under symmetric and random matching is analyzed. As long as the message set is sufficiently large there exists an Asymptotically Stable Set with payoffs arbitrarily close to the maximal payoff for each player. However this only holds true for each Asymptotically Stable Set if there are no more ...

We study the combined effects of periodically varying carrying capacity and survival rate on populations. We show that our populations with constant recruitment functions do not experience either resonance or attenuance when either only the carrying capacity or the survival rate is fluctuating. However, when both carrying capacity and survival rate are fluctuating the populations experience eit...

Here we investigate how strategic adaptation changes our understanding and predictions of voting systems. We model populations of agents voting in multiple elections over time that revise their voting strategies based on electoral outcomes. Using this framework we examine the dynamic formation of electoral outcomes. Allowing agents to adapt their strategies refines the predictions of rational c...

Abstract. First, we systematize earlier results on the global stability of the model ẋ + μx = f(x(· − τ)) of population growth. Second, we investigate the effect of delay on the asymptotic behavior when the nonlinearity f is a unimodal function. Our results can be applied to several population models [7, 9-13] because the function f does not need to be monotone or differentiable. Specifically, ...

We are concerned with a population model with age-size dependence and spatial diffusion in the semigroup framework. We identify the infinitesimal generator and study its spectral properties. The dominant eigenvalue is thus determined. It is shown that the structure of the semigroup for the population with diffusion is essentially determined by those of the semigroups for the population without ...

The present study is an attempt to find a solution for Volterra's Population Model by utilizing Spectral methods based on Rational Christov functions. Volterra's model is a nonlinear integro-differential equation. First, the Volterra's Population Model is converted to a nonlinear ordinary differential equation (ODE), then researchers solve this equation (ODE). The accuracy of method is tested i...

Introduction: Gail model is one of the most important models for the evaluation of breast cancer risk between US white females. According to genetic diversity, there is a possibility of affecting the efficiency of the Gail model in risk assessment of breast cancer among Iranian populations. In this study, the Gail model efficiency in specifying the risk of breast cancer in Iranian population wa...

Introduction: Gail model is one of the most important models for the evaluation of breast cancer risk between US white females. According to genetic diversity, there is a possibility of affecting the efficiency of the Gail model in risk assessment of breast cancer among Iranian populations. In this study, the Gail model efficiency in specifying the risk of breast cancer in Iranian population wa...

This paper investigates the efficiency of an alternative to ratio estimator under the super population model with uncorrelated errors and a gamma-distributed auxiliary variable. Comparisons with usual ratio and unbiased estimators are also made.