Literature Review

I have a total of 15 publications based on the factors affecting "Willingness to Pay" (WTP) for various health-care-related topics and identified the factors affecting WTP. Based on these factors, I have selected 12 factors that are directly connected to my topic "Willingness to Pay for Pharmaceutical Product". Now I have to analyse these factors using the information from these studies. Essentially, each factor must be described on an individual point basis, demonstrating how these factors affect WTP, to what extent they effect WTP, what the literature says, and develop the hypothesis. My dependent variable is "WTP for Pharmaceutical product" and the identified factors are the independent variables. Based on these variables, regression analysis will be done.
Identified Factors (Independent Variables)
1. Gender
2. Age
3. Education
4. Income
5. Health status
6. Residential Location
7. Drug Availability
8. Brand of the product
9. Product preference
10. Price
11. Health Consciousness
12. Market offerings