Outsourcing and Pass-Through
Rebecca Hellerstein, Sofia Villas-Boas
Journal of International Economics, vol. 81, 2010, p. 170-183.

Identification of Supply Models of Retailer and Manufacturer Oligopoly Pricing
Sofia Villas-Boas, Rebecca Hellerstein
Economics Letters, vol. 90, 2006, p. 132-140.