Erratum to: Food Security (2014)

DOI 10.1007/s12053-014-9297-z

Due to the decease of one of the co-authors of the article “A Target-Oriented Data Envelopment Analysis for Energy-Environment Efficiency Improvement in Japan” (Energy Efficiency, DOI: 10.1007/s12053-014-9297-z), its publication was delayed. Consequently, a few references to recent work of the authors need to be up-dated as follows:

• Kourtit, K., Nijkamp, P., Suzuki, S. (2012) The Rat Race between World Cities: In Search of Exceptional Places by Means of Super-Efficient Data Development Analysis. Computers, Environment and Urban Systems 38: 67–77.

• Suzuki, S. and Nijkamp, P. (2011), A Stepwise-Projection Data Envelopment Analysis for Public Transport Operations in Japan, Letters in Spatial and Resource Sciences, 4(2): 139–156.