Investment sensitivity to lender default shocks

We investigate how lender default shocks impact corporate investment. Lenders with recent default experience write stricter loan contracts, especially to borrowers with pre-existing relationships, leading to a reduction in real investment for all borrowing firms. The decline in investment is more pronounced when agency problems with creditors like asset substitution and claim dilution are higher. Moreover, the decline in investment is not attributable to more frequent covenant violations or to market conditions. The evidence highlights the role of supply-side frictions through the asset side of lenders’ balance sheets on corporate investment and how agency problems may act as mechanisms.     

The Carbon Bubble: climate policy in a fire-sale model of deleveraging∗

Credible implementation of climate change policy, consistent with the 2 °C limit, requires a large proportion of current fossil-fuel reserves to remain unused. This issue, named the Carbon Bubble, is usually presented as a required asset write-off, with implications for investors. We embed the Carbon Bubble in a macroeconomic model exhibiting a financial accelerator: if investors are leveraged, then the Carbon Bubble might precipitate a fire-sale of assets across the economy, and generate a large and persistent fall in output and investment, impairing the economy's ability to invest in the zero carbon assets it needs to produce output in the post-climate-transition world. We find a role for macroeconomic policy protecting investors' balance sheets in mitigating the macroeconomic effects of the Carbon Bubble, and enhancing welfare.     

Quantifying Bias and Inaccuracy of Upper-Level Aggregation in the Harmonised Index of Consumer Prices for Germany and the Euro Area

Current measurement practices of the Harmonised Index of Consumer Prices (HICP) produce an upward bias of about one-ninth of a percentage point in German inflation due to changing consumption being disregarded and preliminary data being used in the compilation of expenditure weights. The statistical uncertainty produced by these sources of mismeasurement can be illustrated by an interdecile range of about one-quarter of a percentage point. The annual updating of the quantity component of the weights, implemented in 2012, has reduced the substitution component, making the disregard of changing consumption virtually a non-issue for the euro area HICP. The measurement of the German HICP is impaired by the extrapolation of expenditure weights. The use of preliminary national accounts data since 2012 has not led to an improvement. This source of mismeasurement is likely to be relevant for the euro area HICP as well but cannot be quantified due to data constraints.     

Increasing Wages,Factor Substitution,and Cropping Pattern Changes in China

This article analyzed the influence of increasing wages on cropping patterns from theoretical and empirical perspectives. The results showed that the increasing labor cost provided a significant incentive to adjust the grain cropping pattern, which increased the production of the three major cereal grains but reduced the production of other grain crops. Increasing wages had a significant negative impact on cash crops. More labor-intensive cash crops experienced a larger negative impact in the context of increasing wages. The increase in labor costs also had a negative impact on the proportion of vegetables produced, which was more evident in northern China. A further mechanism test indicated that factor substitution was a significant reason for cropping pattern changes; this illustrated the substitution of labor by machinery not only between grain crops and cash crops but also among different cash crops.     

Early growing season weather variation,expectation formation and agricultural land allocation decisions in Ethiopia

Using unique crop-specific data gathered over 7 years, we study if and how maize-producing farmers in Ethiopia adjust their land allocation decisions in response to pre-planting-season weather variations. We show that farmers adjust their land allocation decisions in response to increased temperatures early in the growing season. In addition to quantifying a substantial adaptation margin that has not been documented before, our study also reveals the presence of a weather variation-induced expansion of maize production into areas that are less suitable for maize cultivation.     

基于GVES生产函数资本劳动弹性分析

在已有生产函数基础上,依据要素边际弹性和替代弹性的特点,将VES模型扩展为GVES模型。用数学的方法分析了GVES模型的理论性质。然后用GVES模型建立计量模型实证分析资本和劳动弹性问题。结果表明GVES模型具有较好的理论性质和较强的实际应用价值。     

智能化发展对就业结构的影响研究北大核心

本文基于2001~2020年省级面板数据实证检验了智能化发展对中国就业结构的影响,结果表明:智能化发展整体上促进中国就业,在第一产业减少就业,在第二产业和第三产业增加就业。工资水平较高的地区和智能化水平较高的地区,智能化对第二产业就业的创造效应不再显著。最后根据研究结论提出了相应的对策建议。     

Catering to investors through capital expenditures: Testing assets substitution problem around financing

We test the catering theory, which describes how investor preferences might influence individual firms' investment financing decisions. To the best of our knowledge, our study may well be the first that directly connects catering with asset substitution to contrast the magnitude of catering by bondholders and shareholders. And indeed, it is interesting to find that although catering behavior is found to exist among both corporate bond and seasoned equity offering (SEO) managers, the coexistence of both appears to offset the abnormal investment phenomena of either underinvestment or overinvestment. The study results further reveal that firms engage in overinvestment when catering to conversion holders of existing convertible bonds. Taken together, we find that support for the asset substitution and abnormal investment argument is strong from a stockholder–bondholder conflict.     

Green monetary and fiscal policies: The role of consumer preferences

We establish a two-sector model to simulate the potential effects of green fiscal poli- cies and unconventional green monetary policy on the economy during a recovery or in case of a stimulus policy. We find that instruments such as a carbon tax, an implicit tax on brown loans, and a subsidy for the purchase of green goods are all beneficial to the green sector, in contrast to green quantitative easing. A carbon tax imposed directly on firms in the brown sector is the most effective tool to reduce pollution. More importantly, the marginal effects of green instruments on the economy depend on consumer preferences. Namely, the marginal effects are the most prominent when consumers start to purchase more green goods as an increasing part of their consumption basket. Furthermore, the effects of those green policies are more effective when the elasticity of substitution between green and brown goods increases. This finding suggests that raising consumers’ awareness and ability to consume green goods reinforce the effectiveness of public policies designed for low-carbon transition of the economy.