Related Experiment Video
Updated: Dec 27, 2025
08:18
Design and Use of a Full Flow Sampling System FFS for the Quantification of Methane Emissions
Published on: June 12, 2016
17.2K
How global value chain participation affects China's energy intensity
Lafang Wang1, Youfu Yue1, Rui Xie1
1School of Economics and Trade, Hunan University, Changsha, 410079, PR China.
Journal of Environmental Management
|February 25, 2020
Summary
China's global value chain (GVC) participation impacts energy intensity with an inverted U-shaped relationship. While domestic and traditional trade segments have passed critical points, GVC production segments are still evolving toward reduced energy intensity.
Area of Science:
- Economics
- Environmental Science
- Industrial Engineering
Background:
- China is the world's largest energy consumer and a major trading power.
- Increasing complexity of global value chains (GVCs) necessitates understanding their impact on energy intensity.
Purpose of the Study:
- To analyze the influence of GVC participation, measured by production length, on China's manufacturing energy intensity.
- To investigate the non-linear relationships between different segments of GVC production length and energy intensity.
Main Methods:
- Utilized production length to quantify GVC participation, including pure domestic, traditional trade, and GVC activity segments.
- Employed econometric analyses on China's manufacturing sector data from 2000 to 2014.
- Examined the non-linear, inverted U-shaped relationships between production length segments and energy intensity.
Main Results:
- Total GVC activity production length shows a significant inverted U-shaped relationship with energy intensity, with China having surpassed the critical point.
- The pure domestic and traditional trade segments' impact on energy intensity also exhibit an inverted U-shaped curve past the critical point.
- The GVC production segment's impact on energy intensity follows an inverted U-shaped curve but has not yet reached its critical point.
Conclusions:
- Moving China's manufacturing towards the mid-to-high end of GVCs is crucial for reducing energy intensity.
- Addressing captive and "squeezed" positions within GVCs can significantly contribute to energy intensity reduction efforts.
More Related Videos
Related Concept Videos
01:17Factors Affecting Activity Coefficient
1.4K
The extended Debye-Hückel equation indicates that the activity coefficient of an ion in an aqueous solution at 25°C depends on three partially interdependent properties: the ionic strength of the solution, the charge of the ion, and the ion size.
The activity coefficient value for an ion is close to one when the solution has almost zero ionic strength, i.e., when the solution shows close to ideal behavior. As the ionic strength of the solution increases from 0 to 0.1 mol/L, a...
The activity coefficient value for an ion is close to one when the solution has almost zero ionic strength, i.e., when the solution shows close to ideal behavior. As the ionic strength of the solution increases from 0 to 0.1 mol/L, a...
1.4K
01:14Energy Diagrams - I
5.5K
The dynamics of a mechanical system can be easily understood by interpreting a potential energy diagram. Since energy is a scalar quantity, the interpretation of the dynamics of the system becomes even simpler.
Take the example of a skater on a parabolic ramp. The potential energy at different points along the ramp will be proportional to the height of the ramp, which varies quadratically with the horizontal position on the ramp. As the skater moves down the ramp from the highest position,...
Take the example of a skater on a parabolic ramp. The potential energy at different points along the ramp will be proportional to the height of the ramp, which varies quadratically with the horizontal position on the ramp. As the skater moves down the ramp from the highest position,...
5.5K
02:13Energy Diagrams, Transition States, and Intermediates
19.6K
Free-energy diagrams, or reaction coordinate diagrams, are graphs showing the energy changes that occur during a chemical reaction. The reaction coordinate represented on the horizontal axis shows how far the reaction has progressed structurally. Positions along the x-axis close to the reactants have structures resembling the reactants, while positions close to the products resemble the products. Peaks on the energy diagram represent stable structures with measurable lifetimes, while...
19.6K
01:10Energy Diagrams - II
11.6K
Energy diagrams are important to understand the dynamics of a system. The topology of an energy diagram helps illustrate the equilibrium points of the system.
The point in the energy diagram at which the system’s potential energy is the lowest is known as the local minima. The system tends to stay in this position indefinitely unless acted upon by a net force. The slope of the potential energy diagram at the local minima is zero, indicating that zero net force is acting on the system. The...
The point in the energy diagram at which the system’s potential energy is the lowest is known as the local minima. The system tends to stay in this position indefinitely unless acted upon by a net force. The slope of the potential energy diagram at the local minima is zero, indicating that zero net force is acting on the system. The...
11.6K
01:01Production Efficiency
18.0K
Net production efficiency (NPE) is the efficiency at which organisms assimilate energy into biomass for the next trophic level. Due to low metabolic rates and less energy spent on thermoregulatory processes, the NPE of ectotherms (cold-blooded animals) is 10 times higher than endotherms (warm-blooded animals).
18.0K
01:10Electrical Energy
1.6K
Using electric appliances for a longer period of time consumes more electrical energy and results in a higher electric bill. The energy produced by the transfer of electrons from one point to another is known as electrical energy. If power is delivered at a constant rate, the electrical energy can be defined as the product of power used by the device for a period of time. The energy unit on electric bills is the kilowatt-hour, where one kilowatt-hour is equivalent to 3.6 × 106 joules.
1.6K