The Irish social partnership "experiment" over the past 30 years has resulted in:

A) An unstable national labor relations environment
B) Stability of the aggregate economy
C) Unstable workplace labor relations characterized by a high level of strike activity
D) Government control over labor issues

The Irish social partnership "experiment" over the past 30 years has resulted in stability of the aggregate economy. The social partnership system, which involves the government, unions, and employers, has been credited with ensuring economic and political stability in Ireland. While there have been some criticisms of the system, particularly around wage restraint and limited union power, it is generally viewed as a successful model of cooperation and consensus-building. A and C are incorrect as they suggest instability, while D is incorrect as it suggests government control over labor issues.