International Scholarly Research Notices / 2012 / Article / Tab 7

Research Article

Analysis of the Technical Efficiency of Urban Bus Services in Spain Based on SBM Models

Table 7

Summary of regression results of the inputs slacks versus the exogenous variables.

Alternative 1
Input slacksExogenous variables signs in the regression 𝑅 2 coefficient
MCPMAPMCSMASLFRPRGDPMACARMMAARM

Routes lengthβˆ’βˆ’++0,30
Number of vehiclesβˆ’++0,46
Company costsβˆ’++βˆ’0,56

Alternative 2
Input slacksExogenous variables signs in the regression 𝑅 2 coefficient
MCPDMAPDPRSRPRIVMACARMMAARM

Routes lengthβˆ’++βˆ’+0,15
Number of vehiclesβˆ’++βˆ’0,70
Company costsβˆ’+βˆ’βˆ’0,57

See Table 4 for the definition of variables.

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