Maria C. A. S. Portela

According to our database, Maria C. A. S. Portela authored at least 17 papers between 2001 and 2020.

Collaborative distances:

• Dijkstra number of six.
• Erdős number of five.

2020

Preface: International conference on data envelopment analysis - DEA40, 16-18 April 2018.

Emmanuel Thanassoulis, Maria C. A. S. Portela, Victor V. Podinovski

Ann. Oper. Res., 2020

2017

Efficiency in education.

Jill Johnes, Maria C. A. S. Portela, Emmanuel Thanassoulis

J. Oper. Res. Soc., 2017

2016

Identifying the scope for savings at inpatient episode level: An illustration applying DEA to chronic obstructive pulmonary disease.

Emmanuel Thanassoulis, Maria Conceição A. Silva Portela, Mike Graveney

Eur. J. Oper. Res., 2016

The Assessment of Performance of Educational Services: The Case of Portuguese Secondary Schools.

Maria Conceição A. Silva Portela, Ana S. Camanho

Proceedings of the Exploring Services Science - 7th International Conference, 2016

2012

Performance assessment of secondary schools: the snapshot of a country taken by DEA.

Maria Conceição A. Silva Portela, Ana S. Camanho, Diogo Nóvoa Borges

J. Oper. Res. Soc., 2012

Estimating the scope for savings in referrals and drug prescription costs in the general Practice units of a UK primary care trust.

Emmanuel Thanassoulis, Maria Conceição A. Silva Portela, Mike Graveney

Eur. J. Oper. Res., 2012

2011

Productivity change in the water industry in England and Wales: application of the meta-Malmquist index.

Maria Conceição A. Silva Portela, Emmanuel Thanassoulis, A. Horncastle, T. Maugg

J. Oper. Res. Soc., 2011

2010

Analysis of complementary methodologies for the estimation of school value added.

Maria Conceição A. Silva Portela, Ana S. Camanho

J. Oper. Res. Soc., 2010

An improvement on the Tracy and Chen model 'A generalized model for weight restrictions in DEA'.

Masoud Khalili, Ana S. Camanho, Maria C. A. S. Portela, M. R. Alirezaee

J. Oper. Res. Soc., 2010

The measurement of relative efficiency using data envelopment analysis with assurance regions that link inputs and outputs.

Masoud Khalili, Ana S. Camanho, Maria Conceição A. Silva Portela, M. R. Alirezaee

Eur. J. Oper. Res., 2010

2009

Efficiency analysis accounting for internal and external non-discretionary factors.

Ana S. Camanho, Maria Conceição A. Silva Portela, Clara B. Vaz

Comput. Oper. Res., 2009

2007

Developing a decomposable measure of profit efficiency using DEA.

Maria C. A. S. Portela, Emmanuel Thanassoulis

J. Oper. Res. Soc., 2007

Comparative efficiency analysis of Portuguese bank branches.

Maria Conceição A. Silva Portela, Emmanuel Thanassoulis

Eur. J. Oper. Res., 2007

2006

Zero weights and non-zero slacks: Different solutions to the same problem.

Maria Conceição A. Silva Portela, Emmanuel Thanassoulis

Ann. Oper. Res., 2006

2005

Profitability of a sample of Portuguese bank branches and its decomposition into technical and allocative components.

Maria Conceição A. Silva Portela, Emmanuel Thanassoulis

Eur. J. Oper. Res., 2005

2004

Negative data in DEA: a directional distance approach applied to bank branches.

Maria Conceição A. Silva Portela, Emmanuel Thanassoulis, Gary Simpson

J. Oper. Res. Soc., 2004

2001

Decomposing school and school-type efficiency.

Maria Conceição A. Silva Portela, Emmanuel Thanassoulis

Eur. J. Oper. Res., 2001