Critics of Europe's data policies, however, have said that they have impeded Europe's ability to monetize the data of users on the internet and are the primary reason why there are no Big Tech companies in Europe, with most of them instead being in the United States. Furthermore, with Alibaba and Tencent joining the ranks of the world's 10 most valuable tech companies in recent years, even China is moving ahead of Europe in the performance of its digital economy, which was valued at $5.09 trillion in 2019 (35.8 trillion yuan).