Short business news

Here are some short business news updates:

Tech

• Amazon's Alexa-powered smart speaker, Echo, has surpassed 100 million units sold worldwide. (Source: CNBC)
• Facebook's cryptocurrency, Libra, has been delayed indefinitely due to regulatory concerns. (Source: The Verge)

Finance

• The Dow Jones Industrial Average closed above 30,000 for the first time, driven by optimism over the COVID-19 vaccine rollout. (Source: Bloomberg)
• The US Federal Reserve has kept interest rates unchanged, citing low inflation and a strong economy. (Source: Reuters)

Retail

• Walmart has acquired a majority stake in Cornershop, a Chilean grocery delivery startup, for $225 million. (Source: The Wall Street Journal)
• Target has announced plans to open 30 new stores in the US this year, focusing on smaller formats and urban areas. (Source: CNBC)

Economy

• The US economy grew at an annual rate of 4.1% in the third quarter, driven by consumer spending and government stimulus. (Source: The New York Times)
• The International Monetary Fund has cut its global growth forecast for 2021, citing the ongoing pandemic and trade tensions. (Source: BBC News)

Other

• Tesla has become the most valuable automaker in the world, surpassing Toyota. (Source: Forbes)
• McDonald's has launched a new loyalty program, called MyMcDonald's, to compete with rivals like Starbucks and Chick-fil-A. (Source: AdAge)

These are just a few of the latest business news updates. Let me know if you'd like me to provide more information or summaries!