Related Experiment Video
Updated: Oct 15, 2025
10:37
Procedure to Evaluate the Efficiency of Flocculants for the Removal of Dispersed Particles from Plant Extracts
Published on: April 9, 2016
9.0K
Research on the investment efficiency based on grey correlation-DEA model
Hongxin Yu1, Yuanjun Zhao2, Wei Liu3
1Faculty of Business Economics, Shanghai Business School, Shanghai, 200235 China.
Annals of Operations Research
|October 27, 2021
Summary
Small and medium-sized enterprises (SMEs) show low investment efficiency. Factors like board structure and agency costs negatively impact efficiency, while growth and profitability positively influence it.
Area of Science:
- Business and Economics
- Financial Management
Background:
- Small and medium-sized enterprises (SMEs) are vital for economic growth and employment, especially post-pandemic.
- Assessing SME investment efficiency is crucial for economic stability and market vitality.
Purpose of the Study:
- To measure the investment efficiency of SMEs using data from 2014-2017.
- To analyze the internal factors influencing SME investment efficiency.
Main Methods:
- Utilized the BBC-DEA method to measure investment efficiency.
- Employed grey correlation analysis to account for investment-output lags.
- Applied the Tobit model for empirical analysis of influencing factors.
Main Results:
- The overall investment efficiency of SMEs was found to be low.
- Board structure and agency costs were identified as significant negative influences.
- Enterprise growth, ownership concentration, equity incentives, salary incentives, and profitability positively impacted investment efficiency.
Conclusions:
- SME investment efficiency requires improvement.
- Internal corporate governance and incentive mechanisms are key drivers of investment efficiency in SMEs.
Related Concept Videos
01:01Production Efficiency
17.2K
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).
17.2K
01:26Equity Theory
26
Equity theory explains how our sense of fairness influences the dynamics of close relationships. Rooted in social psychology, the theory posits that individuals evaluate fairness by comparing the ratio of their contributions to the rewards they receive. Relationship satisfaction is highest when these ratios are perceived as balanced between partners, promoting mutual reciprocity and a sense of justice.Equity vs. Equality in RelationshipsEquity is distinct from equality. Fairness does not...
26
01:12Coefficient of Correlation
6.8K
The correlation coefficient, r, developed by Karl Pearson in the early 1900s, is numerical and provides a measure of strength and direction of the linear association between the independent variable x and the dependent variable y.
If you suspect a linear relationship between x and y, then r can measure how strong the linear relationship is.
What the VALUE of r tells us:
The value of r is always between –1 and +1: –1 ≤ r ≤ 1.
The size of the correlation r indicates the...
If you suspect a linear relationship between x and y, then r can measure how strong the linear relationship is.
What the VALUE of r tells us:
The value of r is always between –1 and +1: –1 ≤ r ≤ 1.
The size of the correlation r indicates the...
6.8K
01:12Column Efficiency: Rate Theory
589
The rate theory of chromatography provides quantitative insight into the shapes and widths of elution bands. These bands are based on the random-walk mechanism governing molecular migration within a column. The Gaussian profile of chromatographic bands arises from the cumulative effect of random molecular motions as they progress through the column.
During elution, a solute molecule experiences numerous transitions between stationary and mobile phases, exhibiting irregular residence times in...
During elution, a solute molecule experiences numerous transitions between stationary and mobile phases, exhibiting irregular residence times in...
589
00:53Correlation and Regression
2.5K
In statistics, correlation describes the degree of association between two variables. In the subfield of linear regression, correlation is mathematically expressed by the correlation coefficient, which describes the strength and direction of the relationship between two variables. The coefficient is symbolically represented by 'r' and ranges from -1 to +1. A positive value indicates a positive correlation where the two variables move in the same direction. A negative value suggests a...
2.5K
01:29Econometric Views (EViews)
300
Econometric Views, often stylized as EViews, is a package that merges statistical analysis with econometric studies. It is designed to provide tools for time series analysis, forecasting, and econometric model simulation. The software originated from MicroTSP software and has evolved significantly since its inception in 1981. The history of EViews is marked by a continuous effort to enhance its computational speed and user interface. It was initially developed for large computing systems but...
300