The goal of the study was to find the best way to manage pension funds in the UK by deciding on both where to invest the money and how much to contribute. The researchers created a model that considers different types of pension liabilities and aims to minimize the risk and variability of contribution rates. By adjusting the way liabilities are calculated, they found a way to reduce the uncertainty in how much money needs to be put into the pension fund. This model was tested on a large UK pension scheme to show its effectiveness.