Difference-in-differences models Area-based 1 Biological conservation 1 Block Island 1 Central Europe 1 Commerce 1 Conservation 1 Difference in differences (DID) model 1 Difference-In-Differences 1 Difference-in-differences 1 Ecological stability 1 Ecology 1 Effectiveness 1 Electric utilities 1 Environmental protection 1 Forestry 1 New England 1 Non-Market valuation 1 Non-market valuation 1 Off-shore wind energy 1 Offshore oil well production 1 Offshore wind 1 Offshore wind farms 1 Offshore winds 1 Plant productivity 1 Productivity 1 Propensity score matching (PSM) method 1 Propensity score matching method 1 Protected areas 1 Rental market 1