Answer:
Economic vulnerability
Explanation:
Economic vulnerability is the concept that characterizes the condition of groups of individuals that are on the fringes of society, that is, people or families that are in the process of economic exclusion, mainly due to socioeconomic factors. This profitability is characterized by the impossibility of individuals to possess what they need because their economic conditions do not allow, even if the price of the product that the individual needs is reduced.
Based on this, we can conclude that a subject who participates in a drug study because treatment is available at low or no cost, and he could not afford it, is an example of economic vulnerability.
