MAS-II study plan
MAS-II · Give each week a clear focus.
8 weeks · About 7 hours per week
Modern Actuarial Statistics II
Map the full MAS-II syllabus into a one-page topic inventory and rate your current confidence on each item from 1 to 5
Derive the likelihood, score, and observed/expected Fisher information for exponential-family models from first principles, working three examples by hand
Set up a spaced-repetition deck covering core distributions (Poisson, binomial, gamma, normal, inverse Gaussian) with mean, variance, and canonical link noted
Build a formula sheet template in a spreadsheet with columns for model, assumption, estimator, and asymptotic variance
Your checkpoint
A one-page syllabus inventory plus a 15-row formula sheet, both saved and dated
Modern Actuarial Statistics II
Derive maximum likelihood estimators for frequency and severity models and verify each with a simulated dataset in R or Python
Distinguish maximum likelihood, method of moments, and Bayesian estimation and state when each fails or is preferred
Compute standard errors from the Hessian and from the inverse Fisher information, then compare the two numerically on one simulated sample
Write out the Cramer-Rao lower bound argument and identify where regularity conditions matter
Your checkpoint
A script that simulates one dataset, fits three estimators, and prints a table comparing estimates and standard errors
Modern Actuarial Statistics II
State the asymptotic normality result for MLEs and apply the delta method to transform a parameter estimate and its variance
Derive confidence intervals and Wald, score, and likelihood-ratio test statistics for a single parameter and a vector of parameters
Run a likelihood-ratio test on nested models and interpret the chi-square reference distribution
Tabulate the three test statistics side by side with their formulas and small-sample caveats
Your checkpoint
A worked hypothesis-testing write-up on one dataset showing all three test statistics and a conclusion
Modern Actuarial Statistics II
Derive the profile likelihood and construct a profile-likelihood confidence interval for one parameter of interest
Explain the construction of bootstrap confidence intervals (percentile and basic) and implement one by resampling
Compare profile-likelihood and bootstrap intervals on the same dataset and explain any disagreement
Review weeks 1-3 notes and rewrite every derivation from memory
Your checkpoint
A comparison table of Wald, profile-likelihood, and bootstrap intervals for one parameter, with a short interpretation
Modern Actuarial Statistics II
Specify a generalized linear model with a non-canonical link and derive the score and information equations
Fit a log-link Poisson frequency model and a log-link gamma severity model, then interpret every coefficient on the response scale
Diagnose overdispersion and zero-inflation and state the corrective modeling options
Derive the deviance and compare it with the Pearson chi-square statistic
Your checkpoint
A fitted GLM report with coefficient table, deviance, and a written interpretation of each effect
Modern Actuarial Statistics II
Derive the credibility premium under the Bühlmann and Bühlmann-Straub frameworks and connect it to the linear mixed model formulation
Compute the credibility factor and structural parameters from a small multi-group dataset by hand
Explain how Bayesian conjugate updating yields the same credibility formula and identify the prior-to-structural-parameter correspondence
Set up the hierarchical likelihood for a random-effects model and state what the random effect represents
Your checkpoint
A hand-worked credibility calculation for at least four groups, reconciled against a software fit
Modern Actuarial Statistics II
Derive the empirical Bayes estimator and distinguish it from the fully Bayesian and pure random-effects estimators
Explain shrinkage, and plot how the credibility weight changes as between-group variance and within-group variance vary
Fit a random-effects frequency model and extract the predicted group effects
Identify the assumptions that break the credibility framework and describe a diagnostic for each
Your checkpoint
A shrinkage plot with a written explanation of how the credibility weight responds to variance components
Modern Actuarial Statistics II
Assemble a single condensed review sheet covering every derivation from weeks 1-7
Timed practice: complete a set of mixed estimation and inference problems under exam time pressure and score yourself
Re-derive from memory the three items you scored lowest on and log the corrections
Write a final self-assessment listing weak topics with a specific remediation action for each
Your checkpoint
A scored timed practice set with an error log and a prioritized remediation list
Milestones
Week 2: Can derive MLEs and Fisher information for at least three model families without notes, and explain the difference between observed and expected information
Week 4: Can construct Wald, score, likelihood-ratio, profile-likelihood, and bootstrap intervals for one parameter and justify which to prefer in a small sample
Week 6: Can derive the Bühlmann-Straub credibility premium from the model assumptions and reconcile a hand calculation with software output
Week 8: Scores at or above your target on the timed mixed practice set and has a written remediation plan for every missed topic