We use Belgian data on domestic firm-to-firm transactions and ask how the measurement of the share of imports in final consumption is affected when one uses data recorded at higher levels of aggregation. We find that aggregating detailed firm-to-firm transaction data to the firm level and...

We use Belgian data on domestic firm-to-firm transactions and ask how the measurement of the share of imports in final consumption is affected when one uses data recorded at higher levels of aggregation. We find that aggregating detailed firm-to-firm transaction data to the firm level and...

We introduce a new methodology for estimating multi-product production functions. It embeds the seminal contributions of Diewert (1973) and Lau (1976) in our extended version of the semi-parametric econometric framework of Olley and Pakes (1996), where we address the simultaneity of inputs and...

This paper provides an updated overview of the network of Belgian business-to-business transactions from 2002 to 2021, building on the previous vintage of the dataset which covered 2002-2014. Leveraging data from VAT client lists, we establish a comprehensive and cohesive database detailing the...

This paper studies how outsourcing of services activities affects TFP at the firm level. Using the universe of buyer-supplier relationships in Belgium, we first document several new empirical facts about how firms engage in the outsourcing of supporting activities. We show that virtually all...