What increases fixed costs?

What are the key factors that drive up fixed costs in a business? Could it be an increase in rent or lease payments for facilities, higher salaries for permanent employees, or the need to invest in additional equipment or technology? Are there any external factors, such as inflation or changes in regulations, that could also contribute to a rise in fixed costs? And how can businesses effectively manage and control these costs to maintain profitability and competitiveness in the market?