In this task, you are given a question and a context passage. You have to answer the question based on the given passage.
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Question: What promotes conflict?, Context: According to economists David Castells-Quintana and Vicente Royuela, increasing inequality harms economic growth. High and persistent unemployment, in which inequality increases, has a negative effect on subsequent long-run economic growth. Unemployment can harm growth not only because it is a waste of resources, but also because it generates redistributive pressures and subsequent distortions, drives people to poverty, constrains liquidity limiting labor mobility, and erodes self-esteem promoting social dislocation, unrest and conflict. Policies aiming at controlling unemployment and in particular at reducing its inequality-associated effects support economic growth.

Answer: Unemployment

Question: What is sometimes combined with an RPG tube to keep from harming the user?, Context: Rocket-propelled grenades can beand often areused against hovering helicopters (e.g., by Somali militiamen during the Battle of Mogadishu (1993)). Firing an RPG at steep angles poses a danger to the user, because the backblast from firing reflects off the ground. In Somalia, militia members sometimes welded a steel plate in the exhaust end of an RPG's tube to deflect pressure away from the shooter when shooting up at US helicopters. RPGs are used in this role only when more effective weapons are not available.

Answer: a steel plate in the exhaust end

Question: Who is knowledgeable about the Mahayana?, Context: There is no evidence that Mahayana ever referred to a separate formal school or sect of Buddhism, but rather that it existed as a certain set of ideals, and later doctrines, for bodhisattvas. Initially it was known as Bodhisattvayana (the "Vehicle of the Bodhisattvas"). Paul Williams has also noted that the Mahayana never had nor ever attempted to have a separate Vinaya or ordination lineage from the early schools of Buddhism, and therefore each bhiksu or bhiksuni adhering to the Mahayana formally belonged to an early school. This continues today with the Dharmaguptaka ordination lineage in East Asia, and the Mulasarvastivada ordination lineage in Tibetan Buddhism. Therefore Mahayana was never a separate rival sect of the early schools. From Chinese monks visiting India, we now know that both Mahayana and non-Mahayana monks in India often lived in the same monasteries side by side.

Answer:
Paul Williams