Many businesses routinely collect data about the location of  consumers, such as where they are when they make a  purchase or use a mobile app. Aggregating this information  reveals useful insights about human mobility and social  interaction. Researchers, governments, and others can use  this mobility data, while respecting user privacy, to study and  address many pressing societal challenges, such as disease  spread, urban functioning, forced migration, climate change,  and disaster response. To support these types of  applications, EU policymakers should encourage businesses  to share mobility data by implementing policies that provide  firms with regulatory clarity, financial incentives, and  technical resources to give out this type of data.