The Unassuming Economist

From a paper by Lei Yu, Wenxian Zhou, Yujie Lin, Xinlong Yang and Jue Wang:

“This paper explores the impact of demographic changes on the sustainability of household liabilities, which is crucial for adjusting the effects of demographic shifts and stabilizing household debt levels. Using inter-provincial panel data and econometric models, including fixed effects, systematic GMM, and mediation effect models, the study examines how demographic structure affects household debt sustainability. It finds that the natural population structure has a more significant impact than social or spatial factors. Key results include: (1) higher child and old-age dependency ratios worsen debt sustainability, with regional variations; (2) a favorable gender ratio improves debt sustainability, particularly in the eastern regions; (3) higher income ratios for home-purchase and consumption expenditures, along with GDP growth, benefit debt sustainability, while financial security income has a negative effect; (4) rising house prices mediate the relationship between demographic changes and debt sustainability. The study recommends policy improvements such as incentives for multiple births and enhanced social security.”

From a paper by Amar Rao, Brian Lucey, and Satish Kumar:

“The functioning of energy markets is essential for global stability and is heavily influenced by geopolitical risks. Understanding these risks is critical for policymakers, market analysts, and nations. This study investigates the impact of geopolitical risks and their components on the futures markets of WTI crude oil and natural gas, utilizing time and frequency connectedness analysis along with impulse response function methods. The analysis is based on a dataset comprising daily prices of spot and futures contracts (across various maturities) as well as treasury yields. Our findings reveal that geopolitical risks have a significant, negative impact on the interest-adjusted spread of WTI crude oil. In contrast, the interest-adjusted spread of natural gas futures (NGF) displays a more complex pattern: while short-term maturities show an insignificant response, long-term maturities exhibit a significant reaction. Spillover effects are more pronounced in the short term but tend to weaken over longer horizons. This study underscores the dynamic influence of geopolitical risks on both key energy markets. Its findings offer a practical framework for risk management, equipping market participants and policymakers with valuable insights to better understand and respond to geopolitical risks in the energy sector.”

From a paper by Nauro F. Campos, Vera Z. Eichenauer, Jan-Egbert Sturm:

“The average unemployment rate in Europe has been consistently higher than in the United States since 1980. The main explanation offered by a rather large economics literature focuses on the interaction between institutions and shocks. The contribution of this paper is twofold: to assess whether this prevailing explanation still holds when we take into account recent shocks (globalisation, China, etc.) and time-varying labour market institutions; and to offer a decomposition (using the Shapley-Owen approach) of the relative contributions of shocks, institutions and their interactions. While our results confirm the general validity of the Shocks and Institutions Hypothesis, we argue that it is more complex and nuanced than originally formulated.”

From China Daily:

“The just-concluded G20 Summit marked a critical moment for global governance, and offered China a platform to share its vision of inclusive growth, equitable global governance and pragmatic cooperation. President Xi Jinping’s proposals at the G20 Summit in Rio de Janeiro, Brazil, underscored China’s commitment to upgrade its efforts with the Global South in order to address pressing global challenges.

President Xi’s emphasis on the Global South was not just rhetoric but a genuine belief in making the global governance system fairer and more representative. By championing initiatives like the Initiative on International Cooperation in Open Science and pledging to increase imports from developing countries to $8 trillion by 2030, China reinforced its role as a partner of developing countries. The approach highlights China’s broader outlooks of global affairs: fostering South-South cooperation and amplifying the voices of emerging economies on the global stage.

Xi also outlined China’s eight actions for global development, which include expanding the Belt and Road Initiative, safeguarding food security and promoting international cooperation in science and technology. This aligns with the developmental goals of the Global South — the Chancay Port inaugurated just a few days before in the region serves as a good example.”

From Climate Economics:

“Here are the slides from my recent 25 minute talk. Here is the video where I speak first and then Siqi Zheng speaks about decarbonizing the real estate sector. Here is the entire lecture series.

Six Quick Points

#1 In the developing world, billions of people are moving from rural areas to the cities. Cities offer greater economic opportunity, more excitement and one’s productivity is higher and more robust for urbanites. Farming is more affected by wild weather than is urban life.

#2 People who expect to live their lives in cities invest more in their human capital. Those with more skills are better at solving new problems and are better able to adapt to whatever challenges climate change is posing.

#3 Urbanization raises our income and richer people, cities and nations are better able to adapt to risks. Economic development accelerates adaptation.

#4 Nations with a larger menu of cities to move to will be better able to adapt to climate change. If a nation has one dominant city, then rural to urban migration will cause the mega city to get too big and this will lower quality of life in the slums in that city.

#5 Government investments in place based infrastructure and social insurance often have the unintended consequence of crowding out private self protection investment. That is BAD! Social scientists need to figure out how to design resilience policies such that they are complements not substitutes for private adaptation efforts.

#6 The Lucas Critique; We are not passive victims in the face of climate change. We have an ever growing menu of adaptation strategies that protect us against the serious challenges we now face.”