Results 121 to 130 of about 15,943 (261)

"Comparing alternative methods to estimate gravity models of bilateral trade" [PDF]

open access: yes
The gravity equation has been traditionally used to predict trade flows across countries. However, several problems related with its empirical application still remain unsolved.
Estrella Gómez Herrera
core  

Regional integration and trade: controlling for varying degrees of heterogeneity in the gravity model [PDF]

open access: yes, 2009
Using a panel dataset of bilateral export flows from 12 EU countries to 20 OECD trading partners over the 1992–2003 period, this paper examines whether the effect on trade of European regional integration, denoted by an EU dummy, holds across a ...
Stack, M
core   +1 more source

The Approach to Defining Gravity Factors of Influence on the Foreign Trade Relations of Countries [PDF]

open access: yesProblemi Ekonomiki, 2017
The aim of the article is to determine the gravity factors of influence on the foreign trade relations of countries on the basis of the results of the comparative analysis of the classical specifications of the gravity model of foreign trade and the ...
Kalyuzhna Nataliya G.
doaj  

Thiolated Polymers in 3D Bioprinting: Control of Gelation

open access: yesAdvanced Materials, EarlyView.
Thiolated polymers are established as programmable bioinks for 3D bioprinting, integrating versatile crosslinking chemistries with redox‐responsive control. This work demonstrates how molecular design and external triggers define gelation kinetics, printability windows, and structural fidelity, enabling stable, high‐resolution constructs and advancing ...
Soheil Haddadzadegan   +2 more
wiley   +1 more source

Trade in Services: Does Gravity Hold? A Gravity Model Approach to Estimating Barriers to Services Trade [PDF]

open access: yes
This paper assesses the determinants of trade in services using a gravity model, with particular attention given to the role of barriers to services trade. Initially, the application of the gravity equation to services trade is examined.
Keith Walsh
core  

Co1/Ru Single‐Atom Alloy Catalyst for Sustainable Polypropylene Hydrogenolysis to Long‐Chain Liquid Products

open access: yesAdvanced Materials, EarlyView.
A titania‐supported Co1/Ru single‐atom alloy catalyst enables efficient polypropylene hydrogenolysis. Ru─Co─Ru motifs maintain Ru activity while suppressing excessive chain scission to gaseous products. Both virgin and waste plastics achieve high, environmentally and economically optimal C11+ liquid yields, supporting sustainable chemical recycling ...
Yuzhen Ge   +6 more
wiley   +1 more source

Gravity with zeros: estimating trade potential of CIS countries [PDF]

open access: yes
Arguably, the Commonwealth of Independent States (CIS) countries are not as integrated into the world markets as the EU countries or Southeast Asian countries.
Oleksandr Shepotylo
core  

Photocatalytic Water Splitting on the Lunar Surface: Prospects for In Situ Resource Utilization

open access: yesAdvanced Materials Interfaces, EarlyView.
Water has been found in craters on the moon nearby locations which are illuminated >80% of the time. Photocatalysis uses energy from sunlight to drive chemical reactions such as water splitting to produce oxygen and hydrogen. It is a scalable technology that requires lighter equipment and utilizes resources available on the moon. ABSTRACT The discovery
Ranjani Kalyan   +6 more
wiley   +1 more source

Understanding Operando Water Management in Hydroxide‐Exchange‐Membrane Fuel Cells

open access: yesAdvanced Materials Interfaces, EarlyView.
Effective water management is vital for high‐performance hydroxide‐exchange‐membrane fuel cells. Using a custom water‐flux station, this study quantifies how membrane thickness, microporous layers, and operating conditions dictate internal water transport.
Catherine M. Weiss   +4 more
wiley   +1 more source

Augmented gravity model: An empirical application to Mercosur- European trade flows [PDF]

open access: yes
This paper applies the gravity trade model to assess Mercosur-European Union trade, and trade potential following the agreements reached recently between both trade blocks.
Felicitas Nowak-Lehmann D.   +1 more
core  

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