Google's decision [to shut down its Chinese-based search engine]...raises [the] question...When is it right to...leave a country on human rights grounds?...Leaving often seems like the clear-cut ethical winner in this debate. There often is, however, a case for companies to stay, provided there is a commitment to making a positive impact on human rights...Consider the case of the consumer electronics companies...There is a consensus that "conflict minerals" should be eliminated from the electronics industry, and the tempting next step is to cut out all minerals sourced from the DRC...By contrast, what if companies were to leverage their purchasing power to drive positive change in the DRC?...No company automatically advances human rights by leaving a country, and, likewise, no company automatically improves the situation by staying. In all but the worst cases, it's how business participates in challenging markets that is the ultimate test. [also refers to General Electric]