id	keyword
dem-15481	regime
dem-15481	risk
dem-15481	volatility
dem-15481	aviation
dem-15481	allowances
dem-15481	emission
dem-15481	models
dem-15481	euaas
dem-15481	volatility regime
dem-15481	aircraft
dem-15481	price
dem-15481	market
dem-15481	returns
dem-15481	operators