配额在一定程度上限制某一特定商品的进口，使进口商品价格上涨，鼓励国内制造商以较低的价格销售产品，从而超过进口商品。配额是用来限制进口商品和保护国内产业的。例如，欧盟的牛奶配额一直在保护欧盟牛奶生产商不向其他国家出口更多的牛奶。欧盟负责向世界出口27%的原料奶，由于欧盟对出口的牛奶配额限制是要向is伙伴国家出口更多的牛奶，这一比例正在下降(Andersson & Lingheimer 2015)。因此，配额限制了欧盟牛奶销售商的收入，并在合同中增强了全球不同国家的竞争对手英里生产商，这些国家对牛奶出口配额的制裁较轻。配额通常像关税一样被用来保护国内产业，这样进口的国际产品就不会为国内生产创造竞争环境。
Quotas are used to restrict the import of a particular good to an extent so that the price of the imported goods increases and the domestic manufacturers are encouraged to sell products at lesser price and thus gain over the imported goods. The quota is used to restrict the imported goods and safeguard the domestic industry. For example, the milk quota in the EU has been safeguarding the EU milk producers from sending more milk to different countries. The EU is responsible for sending 27% of raw milk to the world and this is decreasing due to the EU milk quota on exports that restricts is to send more milk to is partner countries (Andersson & Lingheimer 2015). Thus, quota is restricting the income of EU milk sellers and in contracts enhancing the competitor mile producers around the world in different countries who has lesser sanctions of quota of exporting milk. Quota is generally used like tariffs to safeguard domestic industry so that the international exports coming in do not create competitive situation for domestic production.
In doing so, the domestic industry can use more money to spend in teaching their employees about advanced technology and invest in their teaching, equipping them with relevant knowledge. The other welfare benefit of introducing quota in an industry or a product is the stabilisation and enhancement of domestic employment as more domestic activity and confidence will eventually produce more employment demand. This will stabilise its domestic economy and reduce poverty on a slow scale. The other welfare benefit is that the international product which his manufactured by a seasoned company is prevented from directly competing with new and infant players in the same industry. This safeguards the infant players in the industry so that they can equip themselves for future competition of large scale. However, there are negative impacts of introducing quotas such as unfair trade practices followed by international players as they are tempted more to win over customers by offering extra favours to customers as they only have limited quota of products to be sold and they would prefer to make more profit from a defined sale (Itō & Krueger 1993).