The important role of efficiency in the health care foodservice sector has been widely addressed in the literature. Different methods for assessing performance have been proposed. In general, most measures were calculated as simple ratios such as food and labour cost per meal or limited...

An important assumption underlying traditional theories of financial time-series behaviour is that consecutive changes in the price of an asset (ie. asset returns) are independent of each other. For analysts seeking to predict the future value of an asset, this implies that the best step-ahead...