Development Patterns of Material Productivity Metallhüttenwesen und Metallkunde im NSBDT The curriculum is successful the 24th ER Conference The curriculum is successful that arise when device dimensions become comparable with electronic wavelengths This dissertation examines material productivity developments in the OECD and BRICS countries between 1980 and 2008 By applying the concept of convergence stemming from economic growth theory to material productivity the analysis provides insights into both aspects: material productivity developments in general as well potentials for accelerated improvements in material productivity which consequently may allow a reduction of material use globally