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Are women catching up in Chinese patenting?
Female under-representation throughout the innovation pipeline, from ideas to impact, is both widespread and well documented. Women are less likely to engage in patenting activities, produce fewer patents and publications, receive less recognition for their contributions, and face a lower probability of securing funding than their male counterparts. Relying on only a portion of the local talent pool is inefficient: it overlooks the "missing Curies" and "missing Tu Youyous" wh


How do neighborhood tech clusters shape the technological diversification of cities?
The clustering of economic activities is widely considered to be a key driver of economic competitiveness. However, little is known about how technological activities are clustered *within* cities, as the existing literature tends to treat cities as homogenous units, neglecting their neighborhood dynamics and heterogeneity. In this paper, Ziyu Chen, Xiaohu Zhang and I develop a novel measurement framework to identify neighborhood-level technology clusters within 260 Chinese c


How did COVID-19 change graduate mobility between Chinese cities?
The COVID-19 pandemic disrupted human mobility on an unprecedented scale. Yet, the effects on the mobility of recent university graduates remain poorly understood. In China, a country with large internal migration, rising interregional disparities and aggressive local policies to attract high-skilled talent, the question of how, why and where graduates move has large implications for regional economic development and spatial inequality. In this paper, Lu Hao, Yueqi Zhang, Xuy


The impact of geographical distance on learning through collaboration
There is little question that new communication and transportation technologies have effectively “shrunk the world” for a great many activities. At the same time, the “death of distance” has been greatly exaggerated, especially in fields such as academic scholarship and knowledge development where the positive benefits of knowledge spillovers remain highly distance dependent. We analyze 17.6 million publications authored by 1.7 million scholars to examine how knowledge spillo


Are Chinese cities getting smarter in terms of knowledge and technology they produce?
Are Chinese cities becoming smarter in terms of the knowledge and technologies they produce? For decades, the widely held believe in the...


To what extent do simultaneous innovations occur and are independently from each other?
In this paper we use a novel "persistent keyword framework" to systematically identify innovations in a large corpus containing academic...


Are mobile inventors more productive?
Mobility matters! COVID19 limiting our mobility is very likely to negatively impact the productivity of knowledge workers. David Rigby...


Are complex patents more likely to be collaborated?
Are complex patents more likely to be collaborated and how does the geography of this collaboration look like? In this paper I explore...


Using Machine Learning tools to predict complications after surgery
Can we use supervised machine learning tools to predict, based on pre-surgery characteristics, which patents will have (severe)...


Do specialized cities have different collaboration networks?
Do specialized cities have different collaboration networks than diversified cities? And does this matter for patent production? In this...
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