Please NoteThis person can no longer be contacted through the School of Mathematics and Statistics at Victoria University of Wellington
Research InterestsComparison of Bayesian and Frequentist paradigms. Applications in Biostatistics, Genetics and Econometrics.
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PublicationsCostilla R, 2017. Clustering repeated ordinal data: Model based approaches using finite mixtures.. PhD dissertation. School of Mathematics and Statistics. Victoria University of Wellington. New Zealand. Fernández D, Liu I, Costilla R and Gu PY, 2016. Assigning scores for ordered categorical responses ( submitted ). Fernández D, Arnold R, Pledger S, Liu I, and Costilla R, 2016. Mixture based clustering for binomial, count and ordinal data: a summary of recent developments (submitted). Costilla R, Liu, I and Arnold R, 2015. A Bayesian model-based approach to estimate clusters in repeated ordinal data. In JSM Proceedings, Biometrics Section. Alexandria, VA: American Statistical Association. 545-556. Costilla R, Tobias, M and Blakely T, 2013. The burden of cancer in New Zealand: a comparison of incidence and DALY metrics its relevance for ethnic disparities. Australian and New Zealand Journal of Public Health, 37(3):218-225.
Blakely T, Soeberg M, Carter K, Costilla R, Atkinson J, and Sarfati D, 2012. Bias in relative survival methods when using incorrect life-tables: lung and bladder cancer by smoking status and ethnicity in New Zealand. International Journal of Cancer, 131(6): E974–E982.Blakely T, Costilla R, Soeberg M. Cancer Excess Mortality Rates Over 2006-2026 for ABC-CBA. Burden of Disease Epidemiology, Equity and Cost-Effectiveness Programme, Technical Report No. 10. Wellington: Department of Public Health, University of Otago, Wellington, May 2012. Costilla R, Atkinson J, Blakely T. Incorporating Ethnic and Deprivation Variation to Cancer Incidence Estimates over 2006-2026 for ABC-CBA. Burden of Disease Epidemiology, Equity and Cost-Effectiveness Programme, Technical Report No.5.Wellington: Department of Public Health, University of Otago, Wellington, September 2011. LLECE, 2010. Factores asociados al logro cognitivo de los estudiantes de América Latina y el Caribe. OREALC/Unesco Santiago.
Costilla R. and Velozo J, 2009. Determinants of the fares in the Chilean airline market: An empirical approximation to the case of Lan Chile. In Sokol, D. and Fox, E. (Eds.) Competition Law and Policy in Latin America. Hart Publishing.LLECE, 2008. Student achievement in Latin America and the Caribbean. Results of the Second Regional Comparative and Explanatory Study (SERCE). OREALC/Unesco Santiago. Willington, M and Costilla, R. 2007. Endogenous verifiability and optimality in agency: A non-contingent approach Ilades/Georgetown University Working Paper. I-189.