Merger & Acquisition – Market Strategy or Monopoly

Jacobs bought Aker Solutions and Sinclair Knight Merz. AMEC merged with Foster Wheeler. Halliburton bought out Baker Hughes. The next big one, Shell planned acquisition of British Gas (BG) for nearly $70bn. Shell and BG merger will create the world's 2nd largest oil company next to ExxonMobil.

Are these mergers and acquisitions part of marketing strategy or just plain monopoly? How does this differ from the anti-trust ruling against Microsoft?

A Filipino Engineer, Registered Professional Engineer of Queensland (RPEQ) - Australia and Professional Electrical Engineer (PEE) - Philippines with extensive experience in concept select, front-end engineering, HV & LV detail design, construction and commissioning of Hazardous and Non-Hazardous Area electrical installations in water and waste water pipeline and pumping facilities, offshore platforms, hydrocarbon process plants and pipelines including related facilities. Hazardous area classification and design certification (UEENEEM015B, UEENEEM016B, UEENEEM017B).