In this study, Kenneth Ferraro and Tetyana Shippee talk about the inequality of aging. The two come up with a new theory called the cumulative inequality (CI) theory. This theory articulated and identified how life course trajectories are influenced byealry and accumulated inequalities. It also can be modified by available resources and human agencies. They found new sources in immunology, epidemiology, and biology. The results they came to were that inequality stands with family members not treating the elderly with love and care that they deserve.
Gilford, D. M. (1988)