I recently got an abstract case about solving the problem of increased crime rate against women in a major metropolitan city. The case had a market sizing part to estimate the number of crimes against women. I went with a simple approach of doing a population estimation of women, segmenting them based on age, estimating the potential of each segment facing crime (Women between 20 - 40 are more prone to harassment), then took an estimate of how many of these women actually face these crimes. But I felt like it was too simple and could be more sophisticated. Would love to hear different appraoches, thanks.