The conclusion that can be drawn about the level of economic development in countries with different specializations in a commodity chain is that:
Quaternary sector specializations would earn the highest wages.
Countries that specialize in the quaternary sector, which includes knowledge-based services such as research and development, information technology, education, and financial services, typically experience higher levels of economic development due to the complexity and skill required in these industries. This can lead to higher wages compared to the primary, secondary, and tertiary sectors.