@article{merton1971,
  title={Optimum consumption and portfolio rules in a continuous-time model},
  author={Robert C. Merton},
  year={1971},
  journal={Journal of Economic Theory},
  doi={10.1016/0022-0531(71)90038-x},
  url={https://doi.org/10.1016/0022-0531(71)90038-x}
}