Regional integration and industrial growth among developing countries - the case of three ASEAN members

Has the revival of the Association of Southeast Asian Nations (ASEAN) in the early 1990s affected the industrial growth of Indonesia, Malaysia, and the Philippines? The author uses two mechanisms to capture this potential impact: scale effects, and intermediate imports variety. She performs the analysis on twenty two industries (at the three-digit level of the International Standard Industrial Classification) over the period 1971-95. The results show significant heterogeneity in industry-level returns to scale. Moreover, the three ASEAN members have very small, mostly negative cross-industry scale effects. As a result, they may not achieve large, or across-the-board gains from their regional arrangement through scale effects. The author finds unexpected results with respect to the role of intermediate imports variety in industrial growth. She finds no support for the hypothesis that non-regional (rest of the world) suppliers, and goods variety have a positive effect on ASEAN industries through the channel of imported intermediate inputs. The regional variety measure, however, seems to have a positive effect on the output growth of a handful of industries. This result seems due to the fact that these countries have long had a strong intra-regional, and intra-industry trade, whose history predates, and outweighs the ASEAN revival.Environmental Economics&Policies,Health Monitoring&Evaluation,Economic Theory&Research,Water and Industry,Public Health Promotion,Environmental Economics&Policies,Water and Industry,Economic Theory&Research,Health Monitoring&Evaluation,TF054105-DONOR FUNDED OPERATION ADMINISTRATION FEE INCOME AND EXPENSE ACCOUNT

Investigating the effect of rotational degree of freedom on a circular cylinder at low reynolds number in cross flow

Numerical simulations of Vortex-Induced Vibrations (VIV) of a circular cylinder in cross flow with a rotational degree of freedom about its axis have been carried out by means of a finite-volume method. The study is performed in two dimensions at a Reynolds number of Re D = 100, based on the free stream velocity and the diameter, D, of the cylinder. The effect of the rotational degree of freedom on the cylinder's lift and drag forces are compared with the baseline simulation results of flow around a stationary cylinder. The introduction of a rotational degree of freedom (d.o.f) is observed to cause the lift and drag forces to change. Also, the pattern of vortex shedding behind the cylinder is found to drastically change when the cylinder is allowed to rotate

A comparative study of immersed-boundary interpolation methods for a flow around a stationary cylinder at low Reynolds number

The accuracy and computational efficiency of various interpolation methods for the implementation of non grid-confirming boundaries is assessed. The aim of the research is to select an interpolation method that is both efficient and sufficiently accurate to be used in the simulation of vortex induced vibration of the flow around a deformable cylinder. Results are presented of an immersed boundary implementation in which the velocities near nonconfirming boundaries were interpolated in the normal direction to the walls. The flow field is solved on a Cartesian grid using a finite volume method with a staggered variable arrangement. The Strouhal number and Drag coefficient for various cases are reported. The results show a good agreement with the literature. Also, the drag coefficient and Strouhal number results for five different interpolation methods were compared it was shown that for a stationary cylinder at low Reynolds number, the interpolation method could affect the drag coefficient by a maximum 2% and the Strouhal number by maximum of 3%. In addition, the bi-liner interpolation method took about 2% more computational time per vortex shedding cycle in companion to the other methods

The impact of export tax incentives on export performance : evidence from the automotive sector in South Africa

The original goal of the Motor Industry Development Program was to help the automotive industry in South Africa adjust to trade liberalization and become internationally competitive. In simple terms, it consists of an import/export complementation arrangement, whereby the local value-added of components or built-up vehicles exported earns credits that can be used to rebate import duties on components and vehicles. This study provides a first attempt at a quantitative analysis of the Motor Industry Development Program using the difference-in-difference methodology, in order to assess to what extent the program was effective in improving South Africa's automotive export performance during 1996-2006. The authors take a two-tier approach. First, they perform a comparative study using different manufacturing sectors within South Africa; second, they apply this methodology to analyze South Africa and a number of comparator countries that are automotive producers and exporters. The analysis finds that the impact of the program on automotive exports in South Africa is positive and significant. In particular, (i) the largest response to the program in terms of improved manufacturing exports occurs with a delay after the adoption of the law, suggesting that exports need time to fully react to the incentives; and (ii) in turn, the effectiveness of the tax incentives fades in time, reaffirming the common belief that tax incentives may affect some business decisions particularly in the short run, but they are not a primary consideration for investors in the long run.Economic Theory&Research,Transport Economics Policy&Planning,Free Trade,Debt Markets,Tax Law

Semiheterogeneous Dual Nickel/Photocatalytic (Thio)etherification Using Carbon Nitrides

A carbon nitride material can be combined with homogeneous nickel catalysts for light-mediated cross-couplings of aryl bromides with alcohols under mild conditions. The metal-free heterogeneous semiconductor is fully recyclable and couples a broad range of electron-poor aryl bromides with primary and secondary alcohols as well as water. The application for intramolecular reactions and the synthesis of active pharmaceutical ingredients was demonstrated. The catalytic protocol is applicable for the coupling of aryl iodides with thiols as well

South-South regional integration and industrial growth : the case of the Andean Pact

Has the revival of the Andean Pact affected the industrial growth of Bolivia, Colombia, and Ecuador? Has this regional agreement had greater effects tha unilateral liberalization? The author explores two potential channels for industrial growth: scale effects and variety of imported intermediate inputs. She analyzes data from 2 countries (classified at the three-digit level of ISIC) across three countries. The results show that: 10 The variety of intermediate inputs originating from nonregional partners has a significant positive impact on growth in a handful of industries. 2) The effect of regional variety is at best mixed. This lends preliminary support to the argument that unilateral liberalization will have a positive impact on output growth through the channel of imported intermediate inputs. There is significant homogeneity in industry-level returns to scale. Moreover, in the three Andean countries studied, cross-country scale effects were small and negative. Therefore, the three countries should not expect large or across-the-board gains through scale effects from their regional arrangement.Health Monitoring&Evaluation,Environmental Economics&Policies,Economic Theory&Research,Public Health Promotion,Water and Industry,TF054105-DONOR FUNDED OPERATION ADMINISTRATION FEE INCOME AND EXPENSE ACCOUNT,Environmental Economics&Policies,Economic Theory&Research,Health Monitoring&Evaluation,Water and Industry

Testing for a large roundabout capacity model: experimental comparisons between Italy and Bahrain

It is well-known that the maximum traffic flow that a roundabout entry is able to accommodate depends on the amount of flow circulating in the roundabout carriageway that conflicts with the entry flow, that exiting from it and strictly related to the geometric characteristics of the roundabout. International guidelines deal with various capacity models requiring different input data and often leading to different results for the same roundabout entry. Recently, an exponential model has been developed for capacity estimates of multi-lane roundabout entries under different conditions of circulating flow and geometrical factors. Such a model was validated by Al-Madani and Saad [1] on data gathered from a sample of existing large roundabouts in Bahrain. Calculations made applying the developed model, or BAHR model, showed a reasonable fitting to computational data obtained from different international models, as German, French SETRA, American HCM, and so on. In this paper, we have collected traffic data during peaks or congested periods and measured geometry parameters on twelve large roundabouts located in Tuscany, Italy. The main goal was in view of testing if the BAHR model could be well suited or not to Italian context. The same previous methodology applied for the BAHR model was followed and found a new exponential entry capacity model, called TUSC. Statistical tests are performed and the paper ends with some comments about the obtained results

Self-affine surface morphology of plastically deformed metals

We analyze the surface morphology of metals after plastic deformation over a range of scales from 10 nm to 2 mm, using a combination of atomic force microscopy and scanning white-light interferometry. We demonstrate that an initially smooth surface during deformation develops self-affine roughness over almost four orders of magnitude in scale. The Hurst exponent $H$ of one-dimensional surface profiles is initially found to decrease with increasing strain and then stabilizes at $H \approx 0.75$. By analyzing their statistical properties we show that the one-dimensional surface profiles can be mathematically modelled as graphs of a fractional Brownian motion. Our findings can be understood in terms of a fractal distribution of plastic strain within the deformed samples