To avoid further price-gouging, Norway's Ministry of Government Administration announced that it was freezing prices on lodging, food and beverages in the Lillehammer area during the Winter Olympics.
Fortunately price-gouging has not occurred.
The context says that there are actions to avoid further price-gouging, meaning price-gouging has already occurred.  Therefore it is definitely incorrect to say price-gouging has not occurred.
( z1 gouge :polarity - :ARG1 ( z2 thing :ARG2-of ( z3 price ) ) :ARG2-of ( z4 fortunate ) )