Container storage and transshipment marine terminals

This study addresses the storage arrangement of transshipment containers on a container yard, in order to carry out efficiently the ship handling operations at a terminal where mega-containerships call. An optimization model is specified to investigate the flow of containers from the mega-containership to feeder ships using intermediate storage at the yard. A heuristic based on the lagrangian relaxation is formulated. The quality of the heuristic approach is tested in a number of experiments. In the experiments, various situations are analyzed with respect to mega-containership arrival rates, some strategies for stack arrangements and terminal layouts.     

DESTABILIZING EFFECTS ON INCOME ADJUSTMENT PROCESS WITH FISCAL POLICY LAGS

Since a finite time delay in government purchases of goods and service cannot be ignored, this paper studies how such a time lag in a fiscal policy affects the stability of the income adjustment process. Formulating the income adjustment process with time delay, it adopts two different approaches: one is a fixed time lag and the other is a continuously distributed lag. It is demonstrated that the continuously distributed time lag has the stronger destabilizing effect if the adjustment of the government expenditure is slow while the fixed lag has the stronger destabilizing effect if this adjustment is rapid.     

Delay two-sector economic growth model with a Cobb–Douglas production function

Decisions in Economics and Finance - This study demonstrates the possibility of cyclic capital accumulation in the case in which there are delays in capital implementation and estimation of capital...     

Enterprise Reform and Fiscal Reform in China: Overlapping Webs of Interests

This paper investigates the interrelationship between enterprise reform and fiscal reform in China, and illuminates the web of interests which constrains the deepening of system reforms. By analysing the policy processes of the formulation and implementation of 'management contracting' in 1987 and 'fiscal contracting' in the following year, a division is revealed between the financialists and the productionists among the reformers in the central government. While the financialists aim at full marketisation, the productionists, in alliance with the localities, regard that the majority of state enterprises still need protection and guidance of the administrative agencies.     

Neoclassical growth model with two fixed delays

“Delay” has been considered as one of destabilizing factors in economic dynamics for a long time. Dynamic macroeconomics is concerned with explaining growth and fluctuations. This paper shows how various dynamics involving cyclic fluctuations can emerge in the standard neoclassical growth model when two distinct delays, a delay in production and a delay in depreciation, are explicitly taken into account. We first confirm that the production delay has a stabilizing effect and the depreciation delay has a destabilizing effect in a one‐delay model. We then determine the stability switching curve analytically in the two delay model. It is shown that cyclic fluctuations emerge via Hopf bifurcation when stability is lost. It is also found that stability loss and gain repeatedly occur. Numerical examples verify the theoretical results when the Cobb‐Douglas production function is adopted.     

Multi‐Market Competition,R&D,and Welfare in Oligopoly

We investigate a multi‐market Cournot model with strategic process research and development (R&D) investments wherein a multi‐market firm meets new competitors that enter one of the markets. We show that entry can enhance the total R&D expenditures of the multi‐market firm. Moreover, the incumbent's profit nonmonotonically changes as the number of entrants increases. Depending on the fixed entry costs and R&D technologies, both insufficient and excess entry can appear. Our results imply that diversification of their products can be a useful strategy for firms.     

国外创业者的10大谎言

下面是一个国外的投资人写的文章,面对创业者,什么样的谎言骗不倒他呢。     

Delay dynamics in nonlinear monopoly with gradient adjustment

Decisions in Economics and Finance - Two types of boundedly rational monopolists are considered, when they are unable to determine the profit maximizing output levels. In the first case, the...