Estimating demand for fixed-mobile bundles and switching costs between tariffs. - Lukasz Grzybowski; Julienne Liang (Inf. Econ. Policy, 2015)

Transition from copper to fiber broadband: The role of connection speed and switching costs. - Lukasz Grzybowski; Maude Hasbi; Julienne Liang (Inf. Econ. Policy, 2018)