What was the most important element in times booming economy was what?

The most important element in a booming economy is often consumer confidence, which drives spending and investment. When consumers feel optimistic about their financial situation and the overall economic outlook, they are more likely to spend money, leading to increased demand for goods and services. This, in turn, stimulates production, creates jobs, and fosters further economic growth. Additionally, supportive monetary and fiscal policies can enhance this confidence and sustain the boom.