The single market contributes to make the economic growth……………….. . stable slower faster

The single market within the European Union (EU) aims to enhance economic growth by ensuring the free movement of goods, services, capital, and labor among member states. By removing trade barriers and fostering competition, it facilitates efficiency and innovation.

When the single market operates effectively, it can lead to faster economic growth by enabling businesses to expand across borders, access larger markets, and benefit from economies of scale. However, there may also be aspects that contribute to stabilization in the economic context, such as harmonization of regulations that can help mitigate economic shocks.

In conclusion, while the single market can make economic growth "faster" by promoting greater trade and investment, the context of the question suggests that economic growth can also be "stable" because of the structures and regulations in place to support such growth. Therefore, the best completion of the sentence is "faster," as the primary goal of the single market is to enhance economic dynamism more than just stability.

So the sentence would read: "The single market contributes to make the economic growth faster."