Research
Research related to fundamental issues of
                statistical inference of non linear parameters from
                complex sample surveys involving unequal probabilities,
                repeated surveys, non-response; imputation and adaptive
                sampling. These issues include: jackknife variance
                estimation and confidence intervals.
                
                Empirical likelihood inference under complex sampling
                
                Quality assessment of complex parameters
                
                Modelling survey data under complex sampling
                
                Estimating equations and generalised estimating
                equations
                
                Measurement of change and trend for longitudinal surveys
                
                Variance of change for rotating panel surveys
                
                Variance estimation and confidence interval of measure
                of poverty based on EU-SILC
                
                Jackknife variance estimation
                
                Non-response and imputation for survey data
            
