宏观经济专题：建筑开工有所回升

Group 1: Construction and Industrial Production - Recent construction starts have shown a seasonal recovery, with residential construction performing better than infrastructure projects[2] - Industrial production remains at a historically high level, although some sectors, such as high furnace and coking, have weakened[2] - Cement supply for infrastructure projects has decreased month-on-month, with a larger year-on-year decline, while residential cement usage has seen a smaller month-on-month change and a narrowing year-on-year decline[2] Group 2: Demand and Sales Trends - Overall demand in construction remains weak, with rebar, wire rod, and building materials at historical lows[3] - Passenger vehicle sales continue to show negative growth year-on-year, while online sales of major home appliances have weakened further[3] - The average transaction area of new homes in 30 major cities increased by 44% compared to the previous two weeks, but still reflects a year-on-year decline of 18% and 27% compared to 2023 and 2024, respectively[6] Group 3: Commodity Prices - Copper, aluminum, and gold prices have reached new historical highs, driven by the expansion of dollar liquidity and industrial activity related to AI investments[4] - Domestic industrial product prices are experiencing a strong upward trend, with the South China industrial product index showing resilience[5] - Recent fluctuations in commodity prices indicate a potential risk of volatility exceeding expectations[77] Group 4: Export and Economic Indicators - Export growth for the period leading up to December 28 is projected to be between 2% and 4%, with a model indicating a 4.2% year-on-year increase[68] - The central bank has implemented a net withdrawal of 119.3 billion yuan through reverse repos, indicating a tightening of liquidity[70]