Studies Analysis 1,392 Economic models 1,045 Economic theory 881 Energy policy 674 Economic growth 590 Equilibrium 440 Economic development 421 Economic crisis 419 International trade 411 Economic aspects 374 Politics 369 Productivity 339 Regression analysis 321 Energy economics 316 Energy consumption 310 Political economy 308 Impact analysis 306 Developing countries--LDCs 305 Environment 305 Econometrics 297 Securities markets 296 Atmospheric Protection/Air Quality Control/Air Pollution 294 Climate Change/Climate Change Impacts 294 Environment, general 294 Hydrogeology 294 Soil Science & Conservation 294 Water Quality/Water Pollution 294 Macroeconomics 293 Energy efficiency 288