The subject of unobservable variables encompasses this thesis. These latent (i.e., unobservable) variables must be inferred using statistical models or observable proxies. The objectives of my doctoral thesis are to develop and test new statistical models to infer these variables and link them...

Paper I, "The Liability Regime of Insurance Pools and Its Impact on Pricing", addresses the pricing of insurance premiums for specific forms of risk sharing in the insurance industry. The implicit diversification effect from this risk sharing on the default risk is discussed in connection with a...