Crowdworkers, such as Mturk workers, face challenging work conditions, including low pay and unfair treatment. To overcome a lack of means to share information with other workers, they often self-organize in independent online communities, e.g., TurkerNation. Although prior research has explored...

Power cable engineering is a critical method for urban power supply, and ductbank laying of cables is a way of underground cable lines. Considering the cost and construction, MPP pipes with poor heat dissipation performance are often used in ductbank. Many cables are arranged densely in the...

A novel single-ended travelling wave fault location method applicable to the distribution network with multi-branches is presented in this paper. The method only depends on the arrival times of the initial aerial-mode and zero-mode travelling wave, and it can solve the truncation error problem...

Flood events and flood risk have been increasing in the past few decades and have important consequences for the economy. Using county-level and ZIP-code-level data from the United States during 1998-2018, we document that (1) increased flood risk has a large negative impact on firm entry,...

Scientific and technological innovation policies play a critical role in the innovative development of high-technology industrial parks. However, it remains unclear how scientific and technological innovation policies impact the innovation efficiency of high-technology industrial parks and what...

Multinationals play a crucial role in international knowledge diffusion. Using comprehensive patent data, we document: (1) multinational affiliates and their foreign parent firms comprise a significant portion of patents filed with China’s patent office; and (2) there are subsequent transfers...

We build a multi-sector spatial general equilibrium model to account for China’s export surge between 1990 and 2005. We focus on the role of the reductions in tariffs and internal migration costs during that period. Our model generates a closed-form aggregate trade elasticity that can be...

Trade openness can affect welfare through changes in workers’ skill acquisition. We develop a multisector Eaton–Kortum model, in which skill intensities and on-the-job learning opportunities are heterogeneous across sectors. Workers decide whether to become skilled before entering the labor...