With numerical variables associated with conceptual framework of knowledge transfer : Multinational Company; knowledge transfer; knowledge integration; distances; technologies; specific knowledge; acquisition performance...
I suggest the book of melissa schilling "strategic management of technological innovation", has several examples of multinationals (P&G, ericsson, APPLE, Texas Instruments, HP, Motorola), such as collaboration strategies, organizational structures for innovation, S curves of technologies.
I suggest the following paper which provides a meta-analysis of numerical measures of knowledge transfer in MNCs, and provides a list of references to the source papers.