There is a concern that ordered responses on health questions may differ acrosspopulations or even across subgroups of a population. This reporting heterogeneity mayinvalidate group comparisons and measures of health inequality. This paper proposes a test fordifferential reporting in ordered...

We explore how public opinion polls affect candidates' campaign spending in political competition. Generally, polls lead to (more) asymmetric behavior. Under a majority rule there always exists an equilibrium in which the initially more popular candidate invests more in the campaign and thereby...