Simon Langlois studied government employment in Quebec. He found that even though the government had made efforts to formalize recruitment, more than 40 percent of the people he surveyed found their jobs through personal contacts. In the majority of cases, the personal contacts were fairly casual acquaintances, not close friends. What principle is demonstrated here? a. the power of strong triads.
b. the role group cohesion plays in determining behavior.
c. the way reference groups affect people.

the strength of weak ties    

Explanation:

The principle demonstrated here is the strength of weak ties. According to Mark Granovetter, weak ties are acquaintances and are not friends. Weak ties are important as the may hold information such as job opportunities that may prove beneficial and helpful and weak ties encourage sharing information across a wide range of people. For example, an individual who is a weak tie to you might be a strong tie to someone else with useful information.

1. seasonal

2. frictional unenployment

3. the number of the labor force multiplied by 100 and then subtract the number of unemployed.

4. 4%

5. an increase in prices