Polluting emissions generate a negative externality. The total external costs of emissions are described by the following function: EC(M) = 3/8M². The true benefit of pollution arising to the polluter (unknown to the government) is described by the following function: BT(M) = 10M - 7/8M².

However, there is uncertainty about the actual marginal benefits of pollution. The government believes (wrongly) that the benefits of pollution are described by the following function: BG(M) = 5M - 3/4M².

1. Identify the maximum level of pollution from the true benefit function and the socially optimal level of emissions.
2. Identify the pollution target that the government would set according to the information it has about the marginal benefits of pollution.