Much theoretical and empirical research demonstrates that opening trade can spur a country’s GDP growth. But increasing a pie’s size does not guarantee that it will be shared fairly.
在贸易政策中，观点很重要。许多理论和实证研究表明，开放贸易可以刺激一国GDP增长。但做大蛋糕并不能保证蛋糕可以分得公平。