A key issue in the successful management of an Information Technology (IT) outsourcing contract is the measurement of the vendor's performance to ensure that all agreed outcomes are achieved. An effective performance measurement system (PMS) provides both control and accountability of the vendor...

Prior research has highlighted the relationship between speeding and increased frequency and severity of traffic crashes. There is evidence to suggest that police speed enforcement, in particular speed camera operations, can be an effective tool for reducing traffic crashes. This qualitative...

What role do community norms play in the diffusion and persistence of new organizational practices? We explore this question through an examination of the widespread practice of wage arrears, the late and nonpayment of wages, in Russia during the 1990s. Existing research on wage arrears most...

The authors propose a robust transformation linear mixed-effects model for longitudinal continuous proportional data when some of the subjects exhibit outlying trajectories over time. It becomes troublesome when including or excluding such subjects in the data analysis results in different...

Recurrent events are frequently observed in biomedical studies, and often more than one type of event is of interest. Follow-up time may be censored due to loss to follow-up or administrative censoring. We propose a class of semi-parametric marginal means/rates models, with a general relative...

In this article, we formulate a semiparametric model for counting processes in which the effect of covariates is to transform the time scale for a baseline rate function. We assume an arbitrary dependence structure for the counting process and propose a class of estimating equations for the...