Specialty retailer of women's apparel, accessories and footwear, The J Jill Group Inc, on Wednesday posted a sharp fall in fourth quarter net income despite higher sales as it was by an $847,000 asset impairment charge. The Massachusetts-based company reported net income of $6.2 million versus $7m in the year-ago period although net sales jumped 17.6 per cent to $107.9m from $91.7m last year and operating income was $10.8m versus $12.4m.