English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Open

This article explores the relationship between capital composition and productivity using a unique, detailed dataset on firm investment in the United States in the late 1990s. I develop a methodology for estimating the separate effects of multiple capital types in a production function framework. I back out the implied marginal products of each capital type and compare these with rental price data. I find that although most capital types earned normal returns, information and communications technology capital goods had marginal products substantially above their rental prices. The article also provides evidence of complementarities and substitutabilities among capital types and between capital types and labor.

IT and Beyond: The Contribution of Heterogenous Capital to Productivity