id	keyword
american_scientific_journal-2860	firms
american_scientific_journal-2860	production
american_scientific_journal-2860	output
american_scientific_journal-2860	foreign
american_scientific_journal-2860	efficiency
american_scientific_journal-2860	technical
american_scientific_journal-2860	domestic
american_scientific_journal-2860	labour
american_scientific_journal-2860	function
american_scientific_journal-2860	levels
american_scientific_journal-2860	capital
american_scientific_journal-2860	products
american_scientific_journal-2860	mean
american_scientific_journal-2860	ghana