Are third parties the biggest reason delivery costs keep going up?

To what degree is working with third parties a hurdle to driving profitability in online delivery? What advice would you have for working with third parties in  resolving both delivery and customer service issues?

Interactive Edge’s CEO, Zel Bianco comments, featured on RetailWire’s Braintrust :

This is the reason that Boxed is successful. They understand how to use the carriers’ built-in allowance for weight/size of the box equation to make themselves money. The way they pack the box with extra items without increasing the cost to ship is their secret sauce. I just heard the founder speak at an industry conference and his method seems to be very smart.

Read the entire article from RetailWire: