Tyson Foods, one of the country's largest meat producers, said that it planned to eliminate the use of human antibiotics in its chicken production by 2017.

A coalition of grocers, seed growers and consumer and environmental advocates filed suit on Tuesday against the Department of Agriculture over a change it made to the process used to determine which substances may be used in organic farming.

Chris and Tope Folayan, two brothers who grew up in Nigeria and attended college in the United States, founded MallforAfrica in 2013. Tope earned an M.B.A. from the Kellogg School of Management at Northwestern. After graduating, he returned to Lagos, while Chris remained in the United States. Their company makes it easier for Nigerians to place online orders for American and British products that are difficult to find in Nigerian stores and that online retailers don't offer directly to most African consumers because of troublesome customs duties and paperwork, shipping costs and the fear of fraud.

As Chinese individuals and companies head overseas in greater numbers, the country's tax authorities are starting to follow.

It just might be time to book that vacation in Paris you've been thinking about. That is one practical conclusion to draw from a remarkable set of shifts in global currencies that started in the second half of last year and has continued in the early trading days of 2015. The seemingly inexorable rise of the dollar versus the euro and most other currencies has broad implications for the global economy this year and beyond.

Senate investigators are widening the scope of the inquiry into General Motors' decade-long failure to recall cars with a defective ignition switch to also focus on the supplier that made the flawed part.