We can talk about this today because it’s Tuesday…Mondays aren’t fun, and a new study finds the combination of staff returning to work after the weekend and being bummed about it impacts the delivery time on packages. This so-called “Monday Effect” is already known for making the first day of the working week less productive for those working in finance and psychology. This new study found that orders placed on Monday take almost ten percent longer to ship than those placed on other days of the week. Researchers from several universities also found there are more fulfillment errors on Mondays, and that weekends create bottlenecks at distribution centers which much be tackled when the week resumes. This is all amplified by a drop in employee performance as staff members are more prone to errors and less efficient on Mondays. The researchers say the most efficient way of improving performance on Monday is to increase the role of computers and algorithms in businesses.