It is expected that more accounting conservation (environmental uncertainty) reduces manager optimism. Prior research, however, has struggled to establish this relation empirically. Moreover, some evidence points to the possibility that the manager optimism is lower for firms with more accounting conservation. In this paper, the author examine the link between accounting conservation, environme...

In this research, first, kinematic and dynamic equations of a 4-DOF 3-link robotic finger are derived using Denavit-Hartenberg convention and Lagrange’s formulation. To model the muscles, several springs and dampers are placed between the finger links. Then, two advanced controllers, namely adaptive-robust and adaptive-neural, which can control the robotic finger in presence of parametric uncer...

Design of a logistics network in proper way provides a proper platform for efficient and effective supply chain management. This paper studies a multi-period, multi echelon and multi-product integrated forward-reverse logistics network under uncertainty. First, an efficient complex mixed-integer linear programming (MILP) model by considering some real-world assumptions is developed for the inte...

cognitive restructuring and exposure therapy have been integrated into a highly structured package for the treatment of social phobia termed cognitive-behavioral group therapy (cbgt). the first two sessions of cbgt for social phobia are devoted to training clients in the basic tenets of cognitive therapy. clients learn to identify their own irrational thoughts and to challenge the content of th...

This paper investigates two chattering-free finite-time controllers for the rigid spacecraft attitude tracking control problem considering modeling uncertainty and external disturbance. First, the basic controller is designed utilizing integral terminal sliding mode surface (ITSMS) with prior knowledge of the total system uncertainty consisting of modeling uncertainty and external disturbance. ...

This paper constructs a model economy to explain how uncertainty shocks can cause business cycle fluctuations. In the model, during times of high uncertainty, the representative agent, due to risk aversion motives, moves resources from a high risk/high return production process to a low risk/low return production process. High uncertainty thus causes the firm level technology frontier to endoge...