Merck (MRK) Source: Zurijeta / Shutterstock.com As a pharmaceutical giant, Merck (NYSE:MRK) makes an excellent case for safe stocks to buy for investing during disinflation. Thus, MRK enjoys a massive total addressable market. As I discussed in my interview with CGTN America anchor Phillip Yin, the central bank is on the right track but it needs to rein in a culture of big government accommodation.