Di filosofye : ṿos zi iz un ṿi zi hot zikh entṿiḳelṭ

fun H̤ayim Zshiṭloṿsḳi

Fridrikh Niṭshe un zayn filosofisher anṭṿiḳlungs-gang

Ḥ. Zshiṭloṿsḳi

[Rezension]

Chaim Tartakower

[Rezension]

Chaim Tartakower

[Rezension]

Chaim Tartakower

The Directional Distance Function and Measurement of Super-Efficiency: An Application to Airlines Data

Lovell and Rouse (LR) have recently proposed a modification of the standard DEA model that overcomes the infeasibility problem often encountered in computing super-efficiency. In the LR procedure one appropriately scales up the observed input vector (scale down the output vector) of the relevant super-efficient firm thereby usually creating its inefficient surrogate. An alternative procedure proposed in this paper uses the directional distance function introduced by Chambers, Chung, and Färe and the resulting Nerlove-Luenberger (NL) measure of super-efficiency. The fact that the directional distance function combines features of both an input-oriented and an output-oriented model, generally leads to a more complete ranking of the observations than either of the oriented models. An added advantage of this approach is that the NL super-efficiency measure is unique and does not depend on any arbitrary choice of a scaling parameter. A data set on international airlines from Coelli, Perelman, and Griffel-Tatje (2002) is utilized in an illustrative empirical application.

[Rezension]

Chaim Tykocinski

[Rezension]

Chaim Tykocinski

Mose b. Chisdai und Mose Taku

Chaim Tykocinski

Die ältesten Nachrichten über die Juden in Halle

Chaim Tykocinski

Das Rabbinats-Diplom des R. Isaak ha-Cohen in Piczow

Bernhard Chaim Dob Berisch Friedberg

Neue auf dem jüdischen Friedhof in Krakau aufgefundene Grabschriften

Bernhard Chaim Dob Berisch Friedberg

Vorarbeiten zur "Germania Judaica" II. : Prag

Chaim Tykocinski

Vorarbeiten zur "Germania Judaica" II. : Leitmeritz

Chaim Tykocinski