*Article* **Public Voice via Social Media: Role in Cooperative Governance during Public Health Emergency**

#### **Yang Yang and Yingying Su \***

School of Management, Harbin Institute of Technology, Harbin 150001, China; yfield@hit.edu.cn **\*** Correspondence: 18b910059@stu.hit.edu.cn; Tel.: +86-188-4558-5002

Received: 31 July 2020; Accepted: 16 September 2020; Published: 18 September 2020

**Abstract:** With the development of the Internet, social networking sites have empowered the public to directly express their views about social issues and hence contribute to social change. As a new type of voice behavior, public voice on social media has aroused wide concern among scholars. However, why public voice is expressed and how it influences social development and betterment in times of public health emergencies remains unstudied. A key point is whether governments can take e ffective countermeasures when faced with public health emergencies. In such situation, public voice is of grea<sup>t</sup> significance in the formulation and implementation of coping policies. This qualitive study uses China's Health Code policy under COVID-19 to explore why the public performs voice behavior on social media and how this influences policy evolution and product innovation through cooperative governance. A stimulus-cognition-emotion-behavior model is established to explain public voice, indicating that it is influenced by cognitive processes and public emotions under policy stimulus. What is more, as a form of public participation in cooperative governance, public voice plays a significant role in promoting policy evolution and product innovation, and represents a useful form of cooperation with governments and enterprises to jointly maintain social stability under public health emergencies

**Keywords:** public voice; public health emergency; social media; policy evolution; product innovation; cooperative governance
