A week after the tragedy at Sandy Hook Elementary, the mass shooting continues to have a ripple effect in the conversation around guns, even in the financial community. 

The pension fund for California’s teachers questioned its investment with the private equity firm Cerberus because it owns Freedom Group, a company that makes the gun used in the shootings. Funds in other states like Massachusetts have followed suit.

Now Cerberus says its looking to sell the company.

This week on WNYC's Money Talking, regular contributors Joe Nocera of the New York Times and Rana Foroohar of Time magazine look into the challenges people face when trying to invest in a socially responsible way. 

Among other questions, they debate what makes a company "socially responsible" in today's globalized economy.