Question

An international business dispute arises between a Filipino national and a Chinese national. The dispute involves a contract for the sale of goods that was executed by the parties in the Philippines. The Chinese national claims that the Philippine court lacks jurisdiction over the dispute, while the Filipino national insists that the case should be heard in the Philippines.

Discuss the concept of the nationality principle in determining jurisdiction, and apply it to the given scenario. Determine whether the Philippine court has jurisdiction over the dispute based on the nationality principle.