Usar "policy change" en una oración

1. ) “Really, I am grateful to the elected representatives who did listen, and the critics for their role in helping to popularize our positions, but especially those who picked up the ball and initiated some legal and policy changes we called for over the years

2. However, above all else, he was excited to be President to bring about policy change and return the country to where it was before Obama and the lefties drove the country off the tracks

3. The market’s anticipation of the announcement which may or may not lead to a policy change, has caused the implied volatility to rise from 10% to 12%