Starwood Hotels' company resource strengths consist of the magnitude of its profit margins and return on investment vis--vis those of key hotel industry rivals. whether it has more primary activities in its value chain than close rivals and a better overall value chain than its rivals in the hotel industry. whether it has a more profitable business model than close rivals in the hotel industry. its core competencies in site selection, construction, reservations systems, and operations. the magnitude of its unit sales, revenues, and market share vis--vis those of key hotel industry rivals