manoeuvre, is one of the principles of war in most of the world’s armies. mobility and manoeuvre of the operational and support forces in the battle fields occur in bed of natural and cultural geographic factors, i.e, avenue approach and frontier transportation networks. so for this reason analyzing this geographical factors in skills such as line identification in tactical and operational leve...

Data envelopment analysis (DEA), originally developed to study production efficiency of micro-level organizations, has recently been used to construct a production-frontier approach to the analysis of international macroeconomic growth and convergence patterns. DEA methods are used to construct the convex production frontier and this construction is then employed to decompose productivity growt...

Consider a planar Brownian motion run for nite time. The frontier or \outer boundary" of the path is the boundary of the unbounded component of the complement. Burdzy (1989) showed that the frontier has innnite length. We improve this by showing that the Hausdorr dimension of the frontier is strictly greater than 1. (It has been conjectured that the Brownian frontier has dimension 4=3, but this...

During a gathering ofhistorians at the World’s Columbian Exhibition in Chicago in 1893, Frederick Jackson Turner presented an essay titled “The Sign Ulcance of the Frontier in American Histoiy. “ Turner ‘s article, also known as the Frontier Thesis, argued that the settlement ofthe frontier made the American nation unique. Turner credited the frontier’s settlement as the primaryforce in shaping...

This paper models dairy farms in KwaZulu-Natal, South Africa, emphasising the complexities unique to this multi-product industry. Net and gross output approaches to measuring production are discussed and then tested using panel data from 37 dairy farms in KwaZulu-Natal from 1999 and 2007. Production functions for the three outputs: milk production, animals and farm-produced feed, are fitted as ...

This paper provides first micro-level evidence of the global university production frontier, allowing to estimate technical efficiencies of 273 top research universities across 29 countries between 2007 and 2009. Exploiting comparable international data improves the estimation of the production technology, allows to assess the distance of individual countries to the global frontier and enables ...

One of the most common approaches for multiobjective optimization is to generate the whole or partial efficient frontier and then decide about the preferred solution in a higher-level decision-making process. In this paper, a new method for generating the efficient frontier for multiobjective problems is developed, called the diversity maximization approach (DMA). This approach is capable of so...

Super-efficiency model in the presence of negative data is a relatively neglected issue in the DEA field. The existing super-efficiency models have some shortcomings in practice. In this paper, a novel VRS radial super-efficiency DEA model based on Directional Distance Function (DDF) is proposed to provide a complete ranking order of units (including efficient and inefficient ones). The propose...