I served as president during a period of significant economic transformation, and my administration was marked by a focus on both deregulation and a strong stance against communism. My vice president also later served as president. Who am I?

1. I was a former actor.
2. I am associated with the phrase 'Tear down this wall'.
3. My economic policies were often referred to as 'Reaganomics'.
4. I survived an assassination attempt early in my presidency.