Search found 6 matches

by kevin.a.agatstein@us.arthurander
Tue Dec 14, 1999 2:08 pm
Forum: SD Mailing List Archive
Topic: Modeling Fatigue
Replies: 4
Views: 13370

Modeling Fatigue

Dear SD Community, I am attempting to build a project model which fatigue is playing a significant role in productivity reduction. (Some of you may be feeling this right now as we scramble to get things done by the upcomming vacation and / or exams). As a starting point I used Jim Hiness Fatgue mole...
by kevin.a.agatstein@us.arthurander
Tue Dec 14, 1999 9:49 am
Forum: SD Mailing List Archive
Topic: Resource allocation models
Replies: 28
Views: 40398

Resource allocation models

Often when building models which are used for strategic planning of professional services firms, time is the primary constrained resource which needs to be allocated. However, the level that I often use is Headcount (actually I use effective headcount which weights people by experience and / or othe...
by kevin.a.agatstein@us.arthurander
Mon Nov 08, 1999 11:44 am
Forum: SD Mailing List Archive
Topic: Bullwhip Effect
Replies: 0
Views: 9608

Bullwhip Effect

Lee, Padmanabhan, and Whang have an interesting article in the Sloan Management
Reveiw, Spring, 1997 (pp. 93-102) entitled "The Bullwhip Effects in Supply
Chains" that you may find useful.

Warmest regards,
Kevin Agatstein
kevin.a.agatstein@us.arthurandersen.com
by kevin.a.agatstein@us.arthurander
Thu Sep 02, 1999 6:54 pm
Forum: SD Mailing List Archive
Topic: Compartmental System
Replies: 11
Views: 8938

Compartmental System

Oddurr, In regards to the solution put forward by Colin Brown in response to his question, there may be a formulation error in the following equation and wish discussion: If C_1 - F(1,2) + F(2,1) > Max_Value then C_1is constrained where Cs are containers (or stocks) and Fs are flows By definition, y...
by kevin.a.agatstein@us.arthurander
Mon Aug 02, 1999 1:23 pm
Forum: SD Mailing List Archive
Topic: Strange spreadsheet concept
Replies: 14
Views: 9432

Strange spreadsheet concept

In the very interesting discussion of "instantaneous" feedback Jim Hiness in SD2299 points to a negative feedback loop that apparently demonstrates simultaneity. That example was pushing on a desk, which "immediately" responds with an equal force (compression) to stabilize your h...
by kevin.a.agatstein@us.arthurander
Tue Jun 15, 1999 4:13 pm
Forum: SD Mailing List Archive
Topic: Health Care System Redesign Models
Replies: 2
Views: 3199

Health Care System Redesign Models

Dear SD Community I was wondering if anyone can point me to some good journal references regarding SD/ST being used to support Public Health Care System redesign effort. The redesign work can range for example from changing disbursment policies to managing interest groups, and anything in between. I...