The article "Monetary Policy Disconnect" shows how different banking practices can weaken the impact of monetary policy. By looking at the repo market, the researchers found that banks with special access to the central bank's deposit facility don't adjust their lending rates as much in response to changes in the policy rate. Additionally, rates for repos backed by assets eligible for Quantitative Easing programs can deviate significantly from the target rate. These two factors work together to make monetary policy less effective in influencing the economy.