Acknowledgements
This forms a part of my Ph.D. work carried out at the Centre for
Economic Studies and Planning, School of Social Sciences, Jawaharlal
Nehru University, New Delhi under the supervision of Prof. Ramprasad
Sengupta. I would like to thank Prof. M.N. Murty for his encouragement,
suggestions and comments. Thanks are also due to Prof. Gopinath
Pradhan for his suggestions on an earlier version of the paper. However,
the usual disclaimers apply.