What means can managers use to assess political risk? What do you think is the relative effectiveness

Question:

What means can managers use to assess What do you think is the relative effectiveness of these different methods? At the time you are reading this, what countries or areas do you feel have sufficient to discourage you from doing business there?
Political Risk
Political risk is the risk an investment's returns could suffer as a result of political changes or instability in a country. Instability affecting investment returns could stem from a change in government, legislative bodies, other foreign...