Multi-objective Programming Model for Enterprise Decision-making Under the Interaction of Progressive Carbon Tax and Carbon Trading

By constructing a multi-objective programming model, this paper studies the decision-making problem of the enterprise under the interaction of progressive carbon tax and carbon trading, and draws the optimal distribution ratio between carbon emission rights and carbon tax, and discusses the tax rate and carbon trading. The relationship between prices affects the substitution effect between the stepped carbon tax and carbon trading, and further analyzes how the substitution effect affects the company's carbon emissions decisions. The study finds that the optimal proportion of carbon emission rights decreases with the increase of carbon emissions, and decreases with the increase of carbon trading unit price; the optimal output decreases with the increase of carbon trading unit price σ. It decreases as the carbon emissions of production units increase. Keywords—progressive carbon tax; carbon trading; interaction; carbon emission decision; multi-objective planning