 Our central finding is the generic existence of a phase transition between a "good economy" where unemployment is low, and a "bad economy" where unemployment is high.
<fluency>  Our central finding is the generic existence of a phase transition between a "good economy" where unemployment is low, and a "bad economy" where unemployment is high.
 Our central finding is the generic existence of a phase transition between a 'good economy' where unemployment is low, and a "bad economy" where unemployment is high.