Making the "cake" bigger has united the people's hearts; dividing the "cake" well can further unite the people's hearts. In recent years, due to the rapid increase in financial strength, the proportion of funds invested by a city in education, health, retirement and other people's livelihood causes Coming bigger. What is the most accurate understanding of the "cake" in the text? ['Fiscal expenditure.', 'Productivity levels.', 'Economic development goals.', 'Economic development model.']