What is one main impediment to regional economic integration? identical political ideologies reduced immigration loss of national sovereignty lack of popular support difficult international policies

loss of national sovereignty

Explanation:

Regional integration is a mechanism wherein the neighboring states or countries enter an arrangement to strengthen cooperation by means of shared institutions and rules to achieve peace, wealth, and a stable state. Cooperation in physical and institutional infrastructure took on specific organizational forms, with different degrees of political obligations and shared sovereignty, and had distinct priorities in different areas of the world. Entering a Regional Integration Agreement includes an immediate concession of power over policymaking and a lack of political sovereignty.

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