Bloomberg Costco Wholesale Corp. fell the most in almost 15 months after posting disappointing quarterly earnings, a sign its warehouse-club model may be less durable than expected in a shaky retail economy. Earnings were $1.17 a share in the fiscal second quarter, the Issaquah, Washington-based company said. Analysts had predicted $1.36 a share, according to data compiled by Bloomberg. …

  Bloomberg Boeing Co. is shrinking its Seattle-area workforce by at least 1,800 jobs this year as the company streamlines operations in a brutally competitive commercial-aircraft market. The planemaker approved voluntary layoffs for 1,500 mechanics, according to a person familiar with the situation who asked not to be named because it hasn’t been made public. Another 305 engineers and technical …

  Dubai / Emirates Business Majid Al Futtaim, the leading shopping mall, communities, retail and leisure pioneer across the Middle East, Africa and Asia, announced the opening of its second Carrefour hypermarket in Nairobi, Kenya. The retailer’s expansion within the Kenyan market marks a significant milestone in the company’s expansion plans into the African continent. The most recent hypermarket is …