boom and bust
noun[U]
ukusECONOMICS
asituationin which aneconomyorbusinessregularlygoes throughperiodsofincreasedactivityandsuccessfollowedbyperiodsoffailure:
Thehistoryofoilis one ofboomandbust.
In thegoldindustry,boomandbustcycleslast anaverageof 10years.
Thecountryseems, for now at least, to haveleftbehindboom-and-busteconomics.