Before revision: This paper evaluates the dynamic impact of various policies , such as school, business, and restaurant closures, adopted by the US states on the growth rates of confirmed Covid-19 cases and  social distancing behavior measured by Google Mobility Reports, where we take into consideration of people's voluntarily behavioral response to new information of transmission risks.
After revision: This paper evaluates the dynamic impact of various policies , such as school, business, and restaurant closures, adopted by the US states on the growth rates of confirmed Covid-19 cases and deaths as well as social distancing behavior measured by Google Mobility Reports, where we take into consideration of people's voluntarily behavioral response to new information of transmission risks.