Using a unique firm‐level data set from Asia, this study examines what determined the robustness and resilience of supply chain links, that is, the ability of maintaining links and recovering disrupted links by substitution, respectively, when firms faced economic shocks due to the spread of the coronavirus disease (COVID‐19). We find that a supply chain link was likely to be robust if the link was between a foreign‐owned firm and a firm located in the foreign‐owned firm's home country, implying that homophily on a certain dimension generates strong ties and thus supply chain robustness. We also find that firms with geographic diversity of customers and suppliers tended to increase their transaction volume with one partner while decreasing the volume with others. This evidence shows that firms with diversified customers and suppliers are resilient, mitigating the damage from supply chain disruption through the substitution of partners. Furthermore, the robustness and resilience of supply chains are found to have led to higher performance.
We analyse the effect of grantback clauses in licensing contracts. While competition authorities fear that grantback clauses might decrease the licensee's ex post incentives to innovate, a standard defence is that grantback clauses are required for the patent-owner to agree to license its technology in the first place. We examine the validity of this "but for" defence and the equilibrium effect of grantback clauses on the innovation incentives of the licensee for both non-severable and severable innovations. Under the 2004 EU Technology Transfer Guidelines, and the guidelines for some other jurisdictions, grantback clauses that apply to "non-severable" (read "infringing") innovations are considered to be less controversial than clauses that apply to "severable" innovations.. We show, to the contrary, that grantback clauses do not increase the patent-holder's incentives to license when non-severable innovations are at stake but they do when severable innovations are concernedsuggesting that the "but for" defence might be valid for severable innovations but not for nonseverable ones. Moreover we show that, for severable innovations, grantback clauses can increase the range of parameters for which follow-on innovation by the licensee occurs.
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