What is the definition of a regional economic group? Question 17 options: an agreement among countries in a geographic region to reduce and ultimately remove tariff and nontariff barriers to the free flow of goods, services and factors of production between each other an agreement among countries in a geographic region to increase tariff and nontariff barriers to the free flow of goods, services and factors of production with nonmember countries an agreement among countries in a geographic region to increase tariff and nontariff barriers to the free flow of goods, services and factors of production between each other an agreement among companies in a geographic region to reduce and ultimately remove tariff and nontariff barriers to the free flow of goods, services and factors of production between each other