interventionist
adjective
uk/ˌɪntəˈvenʃənɪst/ us/-ṱɚ-/ ECONOMICS
becoming involved in influencing a country's economy:
Conservatives are keen not to be interventionist.
an interventionist approach/measure/policy
interventionist
noun [ C ]
ECONOMICS uk/ˌɪntəˈvenʃənɪst/ us/-ṱɚ-/someone who believes in becoming involved in influencing a country's economy:
He was by nature an interventionist rather than a free marketeer.