Alvarez, Fernando; Lippi, Francesco - Istituto Einaudi per l'Economia e la Finanza (EIEF) - 2010
We study the stylized problem of a multi-product firm that can revise prices only after paying a fixed “menu” cost. The key assumption, introduced by Lach and Tsiddon (1996, 2007) and Midrigan (2007, 2009), is that once the menu cost is paid the firm can adjust the price of all its products....