Actually, the QALY measure values years of life at different points in life equally while (most forms of?) the DALY measure values ‘younger’ years of life more than ‘older’ years.
See:
Whitehead, Sarah J., and Shehzad Ali. “Health Outcomes in Economic Evaluation: The QALY and Utilities.” British Medical Bulletin 96, no. 1 (December 1, 2010): 5–21. https://doi.org/10.1093/bmb/ldq033
Actually, the QALY measure values years of life at different points in life equally while (most forms of?) the DALY measure values ‘younger’ years of life more than ‘older’ years.
See:
Whitehead, Sarah J., and Shehzad Ali. “Health Outcomes in Economic Evaluation: The QALY and Utilities.” British Medical Bulletin 96, no. 1 (December 1, 2010): 5–21. https://doi.org/10.1093/bmb/ldq033