Problem Definition: We investigate a seller's optimal advertising campaign strategy targeting customers who interact with the seller over time. We model customers' engagement as a continuous-time Markov chain with two states, active and inactive. While in the active state, customers make...

Problem definition: To mitigate the impact of global climate change, an increasing number of countries in the world have adopted emission control. Government regulations on emission control can be broadly divided into two categories: price instruments and quantity instruments. In this paper, we...