What does volatility and electorate mean?

Does any body know what Volatility or electrotrate mean of course in a politices term

Answer:
The relationship between voters and parties has undergone an alteration, in some countries detectable as a tendency towards decreasing party identification; in some as a tendency towards an increased frequency of unconventional political behavior; and in a few cases as an outright defection of large portions of the electorate from older parties to new parties

volatility= vote switching from one party to the next from one election to the next...repeatedly

electorate = the group of people entitled to vote in an election. ...
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