"To crush his competitors, Rockefeller would create a shortage of the railroad tank cars that transported oil. He’d then buy up all the barrels on the market so

"To crush his competitors, Rockefeller would create a shortage of the railroad tank cars that transported oil. He’d then buy up all the barrels on the market so his competitors would have no place to store or ship their oil. He bought up all the available chemicals that were necessary to refine oil." i thought it's common strategy played in AOE.... this post makes a great companion with another recent post about Uber on Lyft.