Costs Commerce 44 Cost benefit analysis 36 Low-costs 36 Investments 26 Economic analysis 25 Economics 24 Life cycle 24 Cost effectiveness 17 Decision making 16 Optimization 15 Sales 15 Sustainable development 15 Carbon dioxide 13 Energy utilization 13 Profitability 12 Stochastic systems 12 Financial markets 11 Power markets 11 Renewable energies 11 Sensitivity analysis 11 Uncertainty 11 Carbon 10 Competition 10 Forecasting 10 Manufacture 10 Performance 10 Supply chains 10 United States 10 Economic and social effects 9