Make an aggregation matrix to perform mergers of firms. The matrix can be post multiplied (matrix multiplication) to input and output matrices to make merged input and output matrices.
The function dea.boot bootstrap DEA models and returns bootstrap of Farrell efficiencies. This function is slower than the boot.sw89 from the package FEAR. The faster function boot.fear is a wrapper for boot.sw89 from the package FEAR returning results directly as Farrell measures.
The function peers finds for each firm its peers, get.number.peers finds for each peer the number of times this peer apears as a peer, and get.which.peers determines for one or more peers the firms they apear as peers for.
A method to estimate and plot kernel estimate of (Farrell) efficiencies taken into consideration that efficiencies are bounded either above (input direction) or below (output direction).
Draw a graph of a DEA technology. Designed for two goods illustrations, either isoquant (2 inputs), transformation curve (2 outputs), or a production function (1 input and 1 output). If the number of good is larger than 2 then aggregation occur, either simple or weighted.
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