Answer:
False. Markets can sometimes fail to reach efficiencies when there are externalities, public goods, monopoly, or serious information asymmetries
Step-by-step explanation:
Invisible hand (effective allocation of resources in a laissez faire economy) sometimes works because when market function effectively and send correct price as signal of values (to society) to producers.
However, when goods can't be traded on markets (public goods) or its values are not correctly reflected on markets (externalities, information asymmetries) or competition is not ensured (monopoly), markets cannot ensure effective allocation of resources.