We provide a theoretical justification for bi-sourcing, which refers to thesituation where a final goods producer buys an input from an outside supplier and alsoproduces it in-house. Bi-sourcing occurs if the marginal cost of producing the input inhouseis higher than the marginal cost of outside...

We provide a new explanation for a profitable horizontal merger between Cournot oligopolists with symmetric constant returns to scale technologies and homogeneous goods. We show that a merger can be profitable if it prevents a foreign firm from undertaking FDI. Our result is due to the effect of...