Also

* Alaska Airlines plans to cut up to 150 jobs, or 9% of its management staff, as it seeks to reduce layers of management and cut costs.

* Dell Inc. founder and Chairman Michael Dell sold $350 million of stock in the company this week, according to a government filing.

* U.S. retail sales over the Internet rose 0.9% in the second quarter from the first quarter and were up 23.1% compared with a year earlier, a government report showed.