So sánh phương pháp

	Lý thuyết Độ tin cậy	Hồi quy nhị thức âm
Lĩnh vực	Khoa học định phí bảo hiểm	Kinh tế lượng
Họ	Regression model	Regression model
Năm ra đời	1967	2011
Người khởi xướng	Hans Bühlmann	Hilbe (textbook treatment); generalized linear model framework
Loại	Weighted linear blend of individual and collective experience	Generalized linear model for count data
Công trình gốc	Bühlmann, H. (1967). Experience rating and credibility. ASTIN Bulletin, 4(3), 199–207.	Hilbe, J. M. (2011). Negative Binomial Regression (2nd ed.). Cambridge University Press.
Tên gọi khác	Bühlmann Credibility, Experience Rating, Linear Credibility Estimator, Güvenilirlik Teorisi	NB regression, NB2 regression, negatif binom regresyonu
Liên quan	3	4
Tóm tắt	Credibility Theory is an actuarial framework for estimating the pure premium of an individual risk by blending its own observed loss experience with the collective (portfolio) mean. Introduced by Hans Bühlmann in 1967, the method derives the optimal linear combination—the credibility-weighted premium—that minimises mean squared error. It extends classical experience rating to a rigorous statistical footing rooted in Bayesian and linear estimation principles.	Negative Binomial Regression is a generalized linear model for count outcomes that extends Poisson regression to handle overdispersion, where the variance of the counts exceeds their mean. Developed in the GLM tradition and treated in depth by Hilbe (2011), it adds a dispersion parameter so that inference stays valid when Poisson would understate the spread of the data.