WASHINGTON (AP) — U.S. economic growth has accelerated after a sluggish start to the year, while unemployment has fallen to the lowest point in almost 17 years and the stock market has been climbing to record highs. President Donald Trump attributes the good news to optimism about his economic program but some economists worry about how long the good times can last. Diane Swonk, CEO of DS Economics in Chicago and a past president of the National Association for Business Economics, gives her views on the economic outlook. Q: Do you see the recent acceleration in growth continuing? A: After GDP grew at a 2.1 per cent rate in the first half of the year, we are looking at somewhere around 2.75 percent growth in the second half.Read more on NewsOK.com