Value added is offering additional features with goods or services.

From glycerol to value-added products.
Designing Global Strategies: Comparative and Competitive Value-Added Chains
Measuring the Impacts of Teachers II: Teacher Value-Added and Student Outcomes in Adulthood
How Much of Chinese Exports is Really Made In China? Assessing Domestic Value-Added When Processing Trade is Pervasive
Tracing Value-Added and Double Counting in Gross Exports
The Long-Term Impacts of Teachers: Teacher Value-Added and Student Outcomes in Adulthood
The glycerin glut: Options for the value‐added conversion of crude glycerol resulting from biodiesel production
New York University Value-Added Galaxy Catalog: A Galaxy Catalog Based on New Public Surveys*
Value-added electronic messaging services and transparent implementation thereof using intermediate server
Beyond vertical integration — the rise of the value-added partnership