Final answer:
The European Union (EU) was established to address economic problems among its member states, ensuring cooperation and high living standards while being influenced by diverse interest groups.
Step-by-step explanation:
The group created to solve economic problems that affect member countries is the European Union (EU). The EU facilitates economic cooperation and coordination amongst its member states. This cooperation is crucial for maintaining the high standards of living in Europe and for responding to global economic challenges. Economic policies within the EU are influenced by various interest groups, which may include economic groups, labor groups, and civil rights groups. The EU's role in economic policy is to allocate resources in a manner preferred by its member populations while adhering to democratic principles, as democratic governments are expected to make choices reflecting the will of the people.