... higher value added for the customers(faster and more certain service delivery) and lower marginal costs for 94 Innovation and firm strategydeveloped in a career, and filtering and selecting between ... evolved’, Oil and Gas Journal, 100 (18), 52–60.Hayward, A. B. (1999), ‘Exploration frontiers for new century determined by technology, politics’, Oil and Gas Journal, 97 (50), 42 4. Langlois, ... 1355– 74. Cowan, R., P. A. David and D. Foray (2000), ‘The explicit economics of knowledgecodification and tacitness’, Industrial and Corporate Change, 9 (2), 211–53.Godec, M., V. Kuuskraa and...