Robusta coffee edged up on Monday, consolidating last week's 2% gains in quiet trade with U.S. markets closed for Martin Luther King Jr. Day, while London cocoa headed lower.COFFEE* Robusta coffee closed up 0.3% at $4,013 a metric ton, having gained 2% last week.* Robusta has been edging higher since hitting a four-month low in mid-December, with a lack of selling appetite in top grower Vietnam lending support…
