We quantify firm heterogeneity in skill returns and present direct evidence of worker–firm complementarities. Within a model of firms' demand for cognitive and noncognitive attributes we show that identification depends on the availability of skill measures. Linking administrative data to test...

We introduce a new app that collects 24-hour parental time diaries. To assess its validity, we leverage data from a sample of more than 500 parents with pre-school aged children. Our findings show that our tool is reliable and delivers high-quality data. By exploiting contextual information on...