Competition Corporate social responsibilities (CSR) 2 Managers 2 Commerce 1 Competitive strategy 1 Corporate environmental performance 1 Difference-in-differences 1 Differentiation (calculus) 1 Differentiation strategies 1 Environmental management 1 Environmental performance 1 Investments 1 Knowledge management 1 Knowledge spillovers 1 Manufacturing firms 1 Market competition 1 Strategic investments 1 Surveys 1 Trade secrets 1 corporate social responsibility 1 corporate social responsibility (CSR) 1 cost leadership 1 difference-in-differences 1 differentiation 1 environmental performance 1 inevitable disclosure doctrine 1 knowledge spillovers 1 market competition 1 trade secrets 1