This post is from (2013) [..] The difference was significant (p<0.001) Just as an FYI, USPS closed and consulted a bunch of distribution centers from 2011 thro

This post is from (2013) [..] The difference was significant (p<0.001) Just as an FYI, USPS closed and consulted a bunch of distribution centers from 2011 through early 2013. These closures were (according to postal employees I spoke with) the cause of lots of delivery problems. At that time, my business was shipping many hundreds of packages annually domestically and internationally and we would have problems with maybe 2 or 3 every year (which were promptly resolved by the USPS claims process). During the period of around 2012-2013, we were dealing with 3 or 4 delivery problems per month. Things have subsequently improved dramatically. There may very well have been a discrimination problem (it certainly doesn't seem random and I can imagine a scenario where consolidating a distribution center might allow an employee to have a greater affect at disrupting traffic) but I just want to point out that was an especially problematic time for USPS so I wouldn't be surprised if it was a symptom of another problem.