We theoretically demonstrate that the transport inefficiency recently found experimentally for branched-out
mesoscopic networks can also be observed in a quantum ring of finite width with an attached central horizontal
branch. This is done by investigating the time evolution of an electron wave packet in such a system. Our
numerical results show that the conductivity of the ring does not necessary improve if one adds an extra channel. This ensures that there exists a quantum analog of the Braess paradox, originating from quantum scattering and interference
