New PPI net inputs to industry indexes

New inputs

Unless we look anew at agriculture in terms of the balances between wider benefits and impacts and link this to current and future societal drivers, we will continue to pay lip service to the concept of sustainability without ever developing ways to achieve it, they argue. Part of the problem in facing the future is the remarkable past achievements. In recent decades there has been a huge growt...

Malmquist indexes with quasi-fixed inputs: an application to school districts in Québec

In a non-market environment, there is no pressure coming from competitors that leads firms toward efficiency. Public education system is the target of many critiques as being such an example of inefficiency. Some papers attempted to measure the level of inefficiency of schools or school districts using different methods. Unfortunately, those methods do not include an important aspect of the sch...

Macsi-net Macsi-net Macsi-net Macsi-net Macsi-net a European Network of Excellence to Further the Interaction of Mathematics and Industry in Europe Mathematics, Computing and Simulation for Industry Editorial Editors Printed by Macsi-net on the Web

New Unidimensional Indexes for China

A first principal component combines several indicators so as to maximize their internal consistency for measuring a construct. First principal components are extracted here from Swiss Economic Institute and World Bank datasets containing yearly societal indicators for China. These indicators are input to population-weighted regressions without recourse to survey sampling or probabilistic infer...

A New Methodology to Define Net Pay Zone in Gas Reservoirs

Net pay thickness is defined as that portion of a reservoir which contains economically producible hydrocarbons with today’s technology, prices, and costs. This thickness is a key parameter of the volumetric calculation of in-place hydrocarbons, well test interpretation, and reservoir characterization. A reservoir interval is considered as net pay when it contains hydrocarbons that can flow at ...