Group 1: Economic Theory and Models - The Ricardian equivalence theory is increasingly evident in China, where rising government deficit rates reduce residents' marginal propensity to consume[1] - The RBC model is utilized to simulate the impact of fiscal spending on household consumption and consumption propensity[1] - Labor supply elasticity is identified as a key factor influencing changes in household consumption propensity, with values of -0.12 and 0.8 showing that higher elasticity leads to lower consumption propensity and fiscal multipliers[1] Group 2: Fiscal Spending and Consumption Relationship - Fiscal spending has a crowding-out effect on household consumption, with an average APC of 41% since the reform and a tax rate (τ) of 19.76%, indicating that a 1% increase in τ results in a 1.53% decrease in consumption[1] - In scenarios where private consumption propensity declines, increased fiscal spending is recommended to stabilize consumption levels[1] - The relationship between fiscal spending (τ) and APC indicates that if APC decreases, fiscal spending must increase to maintain consumption levels[1] Group 3: Implications of Government Debt - Concerns over high government debt can lead to reduced consumption as residents anticipate future tax increases to balance fiscal requirements[1] - The sustainability of fiscal policy is crucial; unsustainable debt levels can lead to reduced consumer spending and economic growth potential[1] - Investment growth can suppress overall consumption levels, highlighting the balance needed between investment and consumption[1] Group 4: Simulation Results - The RBC model simulations show that increased government purchases lead to higher output but also result in decreased household consumption due to increased taxation[1] - Higher labor supply elasticity results in a faster decline in household consumption propensity following fiscal shocks, indicating a smaller fiscal multiplier[1]