Pfizer isoneoftheworld'slargestpharmaceuticalcompanies. Developing its COVID-19vaccine isacostly,uncertainandcomplexprocess.This company would needtoconsider which parts of the vertical chain to outsource and which to conduct inhouse. Using the theory of the optimal boundary of the firm, discuss Pfizer's make-or-buy decision for developing and producing its COVID vaccine. What stagesoftheverticalchainshouldPfizerconsider conducting inhouse, and which should be outsourced? Provide reasons for your findings.

(INCLUDE REFERENCES OF OPTIMAL BOUNDRY OF FIRM, OUTSOURCING, INHOUSE, VERTICAL CHIN)