The present work complements the recent paper by Barz and Müller (2012). Specifically, upper and lower bounds are derived for the force of mortality when one-year death probabilities are given, assuming a monotonic, convex or concave shape. Based on these bounds, worst-case scenarios are derived depending on the mix of benefits in the case of survival and of death comprised in a specific insurance policy.
Christiansen, M. C., & Denuit, M. (2013). Worst-case actuarial calculations consistent with single- and multiple-decrement life tables. Insurance: Mathematics and Economics, 52(1), 1-5. https://doi.org/10.1016/j.insmatheco.2012.10.002 (Original work published 2013)