从提高国内民众生活水平的立场出发,需要的是大力丰富国内市场的商品数量和质量,所以原则上应该鼓励进口商品、限制出口商品
your princip is very wrong!
only free competition can stimulate the production efficiency, that means, lower price for consumer!
any trade barrier can only help monopolist, they can maintain the higher price and seeking an excessive profit!
For the most west europe countries, because their political system,(democratical system), the government should think about the unemployment rate, if they can not help export, that means the domestic industry is in a not so good situation, they will lose in the next election