Complex sentence: It is also criticized for its lack of product diversity as economies pursue their comparative advantage, which makes the economies potentially unstable if demand for their specialization falls; this is something which occurred during the financial crisis of 2007--08 and subsequent global recession.
Split into simpler sentences: It is also criticized for its lack of product diversity as economies pursue their comparative advantage, which makes such economies potentially unstable if demand for their specialization falls. This is something which occurred during the financial crisis of 2007--08 and subsequent global recession.