Results 151 to 160 of about 2,791,097 (369)

The Identification of Agglomeration Economies [PDF]

open access: yes
Measures of urban productivity are typically positively associated with city population. But is this relationship causal? We discuss the main sources of bias in the proper identification of agglomeration effects.
Gilles Duranton   +2 more
core  

Fe‐N‐C in Proton Exchange Membrane Fuel Cells: Impact of Ionomer Loading on Degradation and Stability

open access: yesAdvanced Energy Materials, EarlyView.
The impact of the ionomer to catalyst ratio for atomic Fe in N‐doped C (Fe‐N‐C) degradation in proton exchange membrane fuel cells is elucidated by advanced electrochemical techniques. Kinetic degradation dominants, with the reduction in turnover frequency of FeNx active sites initially suppressed with increasing ionomer loading.
Angus Pedersen   +10 more
wiley   +1 more source

Mechanism and Measurement of the Effects of Industrial Agglomeration on Agricultural Economic Resilience

open access: yesAgriculture
This study investigates the potential of agricultural industrial agglomeration to bolster agricultural economic resilience and identifies the underlying pathways. We developed an analytical framework for agricultural economics that integrates the concept
Ruikuan Yao   +3 more
doaj   +1 more source

On the Contribution of Agglomeration Economies to the Spatial Concentration of U.S. Employment [PDF]

open access: yes
Why does the level of economic activity vary so much across space? One reason given is "agglomeration economies," meaning that a firm's or household's production costs (of market and home goods, respectively) are lower when production is carried out in ...
Satyajit Chatterjee
core  

Rocketing rents the magnitude and attenuation of agglomeration economies in the commercial property market [PDF]

open access: yes, 2013
Rocketing rents in urban areas are likely explained by agglomeration economies. This paper measures the impact of these external economies on commercial property values using unique micro ]data on commercial rents and employment.
Koster, Hans R. A.
core  

Scalable and Integrated Photocatalytic Reactor Systems for Solar‐to‐Fuel Production: Photoredox and Photoreforming Processes

open access: yesAdvanced Energy Materials, EarlyView.
Solar fuels and other value‐added chemicals derived from light‐driven reactions are highly desirable. Although advanced photoactive materials have been reported, demonstrations of their feasibility in large‐scale production are needed. Hence, strategies and recent efforts in scaling up photocatalytic reactors and integrating them into comprehensive ...
Hoi Ying Chung   +5 more
wiley   +1 more source

City Size and Financial Development [PDF]

open access: yes
Stock markets tend to be few in each country, often unique, and located in the largest cities. Typically, much of the economic activity relating to the stock market takes places in this large city.
Becker, Bo
core  

Sustainable Recovery and Reuse of Hard Carbon From Scrap and End‐of‐Life Sodium‐Ion Batteries

open access: yesAdvanced Energy Materials, EarlyView.
As sodium‐ion battery (SIB) technology advances, sustainable end‐of‐life recycling is crucial. This study presents a direct recycling method for hard carbon (HC) using low‐temperature binder negation at 300 °C under nitrogen. Retaining structural integrity, recycled HC achieves 86–89% capacity retention over 200 cycles.
Bowen Liu   +11 more
wiley   +1 more source

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