19. Political risk in international business exists when（_______） occur in the business environment, when they are difficult to （_______） and when they result from political change .To constitute a risk ,these changes in the business environment must be capable of （_______）affecting the profits or other goals of the firm.
20. Cost effectiveness is an important decision area for the firm. At the same time it is essential that factors other than cost are considered simultaneously. An effective way of evaluating these factors is to use a framework based on Cateora’s five Cs, namely: （_______）, character ,（_______）,（_______）,and
cost.

1、discontinuities
2、anticipate
3、significantly
4、credit
5、coverage
6、Continuity