id	keyword
economy-6840	exchange
economy-6840	eur
economy-6840	oil
economy-6840	coefficient
economy-6840	value
economy-6840	volatility
economy-6840	garch
economy-6840	rate
economy-6840	variables
economy-6840	price
economy-6840	uncertainty
economy-6840	news
economy-6840	countries
economy-6840	authors