Shopping centres around the world responded by reducing hours or closing down temporarily. As of 18 March 2020, the footfall to shopping centres fell by up to 30%, with significant impact in every continent.[61] Additionally, product demand exceeded supply for many consumables, resulting in empty retail shelves.[62][63] In Australia, the pandemic has provided a new opportunity for daigou shoppers to re-sell into the China market. "The virus crisis, while frightening, has a silver lining".[64][65]