scholarly journals Africa’s Trade with China and US: Has COVID-19 Changed the Trends of Trade?

2021 ◽  
Vol 3 (2) ◽  
pp. 55-66
Author(s):  
Adesola Ibironke

Africa’s trade with China and the US is one of the international issues affecting development in the continent. This paper, therefore, examines the effects of COVID-19 on Africa’s trade with the two countries by investigating whether the pandemic has changed the trends of the trade. The article explores the responses of the individual trade of China and the US with Africa to their own shocks, without and with the pandemic, using the vector autoregressive (VAR) model and monthly data covering 1970m01 (January 1970) to 2020m07 (July 2020). The results show that China’s trade performs better while responding to a shock to America’s trade than America’s trade does while responding to a shock to China’s trade, without and with COVID-19. This finding suggests that China has a stronger trade footing in Africa and that COVID-19 had not changed the trends of Africa’s trade with China and America, even with the impact of the pandemic on China. China’s dominant trade status in Africa is probably due to the country’s large investment and aid in the continent. The key policy focus of Africa on trading with China and the US should therefore be how to achieve optimum trilateral trade thresholds in the face of potential trade-offs.

2007 ◽  
Vol 9 (2) ◽  
pp. 145-177
Author(s):  
M. Maulana Al Arif ◽  
Achmad Tohari

This paper analyzes the impact of the inflation and the world interest rate on the Indonesian economy and the effectiveness of the Indonesian central bank policy to adopt the domestic macroeconomic fluctuation.Assuming Indonesia as a small-open economy, the Stuctural Vector Autoregressive Model is utilized on the monthly data during the periode of 1999: 1 – 2004: 12 covering the main domestic macroeconomic indicator (output, price, money supply, interest rate and the exchange rate) and the world oil price and world interest rate as the disturbance source.The analysis provides 2 main results, first, the international variables do have impacts on the domestic variables fluctuation, implying the fragility of the domestic economy due to the external shock, second, the monetary policy is effective on supporting the economic growth and stabilizing the price level. However, the Bank Indonesia policy to stabilize the international shock via the exchange rate channel, contributes to a higher impact of the international shock on domestic interest rate.Keywords: monetary policy, business cycle, SVARJEL Classification: E52, E32, C32, F41


2013 ◽  
Vol 15 (3) ◽  
pp. 89-103
Author(s):  
Mita Nezky

This paper analyzes the impact of the financial crisis in United States 2008 on Indonesia’s economy, by using Structural Vector Autoregressive (SVAR) model of 5 variables; Dow Jones Industrial Average, exchange rate, composite stock price index (IHSG), production index and trade tax income. The result shows that the US crisis affects the capital market in Indonesia where the Dow Jones Industrial Average plays greater role in explaining the IHSG, compared to Rupiah rate, production index and the trade income tax. In addition, the US crisis affects the volume and the trade income tax in Indonesia. These empirical results bring policy implication for Bappepam-LK as stock market regulator to intervene or to suspend the trade when the volatility exceeds the psychological threshold. It also emphasizes the necessity to diversify the export country destination and to increase the quality and the value added of Indonesian export.Keywords : US Crisis, stock market, trade, SVAR.JEL Classification : G18


2021 ◽  
Vol 14 (4) ◽  
pp. 23-42
Author(s):  
V.A. Barabanschikov ◽  
A.V. Zhegallo ◽  
Y.N. Smolny ◽  
M.M. Marinova

This study the role of emotional expressions of the sitter’s face in the perception of his personality traits. The scores given by observers on the scales of the “Personality Differential” for images of a calm face and the face of the same sitter, demonstrating six basic emotions, were compared. Forty-nine photographic images of the emotional states of seven sitters included in the RaFD database were used as stimulus material. A total of 193 Moscow university students (66 men and 127 women, mean age 23.3 years) participated in the experiment. A 17% statistically significant change in personality scores was recorded, two-thirds of which tended toward the positive poles of the scales. Changing perceptions of a person’s personality suggests a coherent relationship between emotion modality and personality traits. Each basic expression influences a specific group of 10-15 traits, and in different ways. Each trait relies on an affective configuration with its own specificity. Disgust has the maximum integrative influence on the view of the sitter’s personality. Joy causes extremely high positive changes, while sadness and astonishment cause moderate, symmetrical changes in the ratio of positive and negative shifts. Fear and anger lead to an equilibrium of positive and negative evaluations. The highest volume of trait changes is obtained for the “Activity” factor (A), which is associated mainly with positive shifts, the lowest volume is for the “Evaluation” factor (E), which is, together with the “Strength” factor (S), the main source of negative changes in the sitters’ perception. The volume of affective feature shifts is determined by the morphotype of the face and the individual stylistics of emotion expression. In everyday life, the possibility of affective changes in traits does not violate the general invariance of interpersonal perception.


2019 ◽  
Vol 24 ◽  
pp. 01003
Author(s):  
Jitka Poměnková ◽  
Eva Klejmová ◽  
Tobiáš Malach

The paper deals with the identification and the description of the co-movement between the US and G8 countries with regard to the impact of the structural change, i.e. the financial crisis in 2008. For the identification of the co-movement, we use an optimized segmentation-adaptive-based approach (SAB) of significance testing of the power wavelet cross-spectrum. The SAB testing is based on the standard testing for the power wavelet cross-spectrum adapted for the case if the data have several levels of volatility during the time evolution, i.e. the data can be split into several segments with different volatility. The number of segments is set by the heteroscedasticity test and the test for comparing variances in the segments of the time series. The SAB testing allows us to identify significant co-movement with respect to the local variance, which can reveal additional significant co-movement areas. We apply this approach to the monthly data of industrial production index for G8 countries in 1993–2017.


2022 ◽  
pp. 112972982110683
Author(s):  
Filiz Uzumcugil

Employing the in-plane technique in infants the footprint of the ultrasound probe should be considered along with the depth of the vein, and the angle between the needle and the face of the probe, which is crucial in optimization of the visibility of the needle in the beam. Three different ultrasound probes are evaluated for different depths of vein. The hockey-stick probe provided a shorter minimum distance while maintaining the angle between the needle and the face of the probe within an optimal range for visualization of the needle in the beam, supporting its recommendation for infants with regard to its frequency and physical size.


2019 ◽  
Vol 11 (10) ◽  
pp. 2776 ◽  
Author(s):  
Rangan Gupta ◽  
Zhihui Lv ◽  
Wing-Keung Wong

Unlike the existing literature, which primarily studies the impact of only monetary policy shocks on real estate investment trusts (REITs), this paper develops a change-point vector autoregressive (VAR) model and then analyzes, for the first time, regime-specific impact of demand, supply, monetary policy, and spread yield shocks, identified using sign-restrictions, on US REITs returns. The model first isolates four major macroeconomic regimes in the US since the 1970s and discloses important changes to the statistical properties of REITs returns and its responses to the identified shocks. A variance decomposition analysis revealed aggregate supply shocks to have dominated in the early part of the sample period, and monetary policy and spread shocks at the end. Our results imply that ignoring other possible shocks in the model is likely to lead to incorrect inferences, and over-reliance on (conventional) monetary policy in correcting for possible bubbles in the REITs sector, which it will fail to rectify, given the importance of other shocks driving the REITs sector.


Author(s):  
Jason Walkingshaw ◽  
Georgios Iosifidis ◽  
Tobias Scheuermann ◽  
Dietmar Filsinger ◽  
Nobuyuki Ikeya

As a means of meeting ever increasing emissions and fuel economy demands car manufacturers are using aggressive engine downsizing. To maintain the power output of the engine turbocharging is typically used. Due to the miss-match of the mass flow characteristics of the engine to the turbocharger, at low engine mass flow rates, the turbocharger can suffer from slow response known as “Turbolag”. Mono-scroll turbines are capable of providing good performance at high mass flow rates and in conjunction with low inertia mixed flow turbines can offer some benefits for transient engine response. With a multi-entry system the individual volute sizing can be matched to the single mass flow pulse from the engine cylinders. The exhaust pulse energy can be better utilised by the turbocharger turbine improving turbocharger response, while the interaction of the engine exhaust pulses can be better avoided, improving the scavenging of the engine. The behaviour of a mono-scroll turbocharger with the engine using engine simulation tools has been well established. What requires further investigation is the comparison with multi-entry turbines. CFD (Computational Fluid Dynamics) has been used to examine the single admission behaviour of a twin and double scroll turbine. Turbocharger gas stand maps of the multi-entry turbines have been measured at full and single admission. This data has been used in a 0D engine model. In addition, the turbine stage has been tested on the engine and a validation of the engine model against the engine test data is presented. Using the validated engine model a comparison has been made to understand the differences in the sizing requirements of the turbine and the interaction of the mono-scroll and multi-entry turbines with the engine. The impact of the different efficiency and mass flow rate trends of the mono and multi-entry turbochargers are discussed and the trade-offs between the design configurations regarding on engine behaviour are investigated.


Author(s):  
Samih Antoine Azar

<p class="MsoNormal" style="text-align: justify; margin: 0in 0.5in 0pt;"><span style="font-size: 10pt;"><span style="font-family: Times New Roman;">This paper tests the relation between inflation and growth in the US. This relation is negative and statistically significant even with a monthly frequency. Moreover, the impact is higher with quarterly data, relative to annual data, and higher with monthly data relative to quarterly data. The relation remains robust (1) with IV (2SLS) estimation, (2) when inflation is divided into positive and negative components, (3) when it is divided into expected and unexpected components, and (4) when the applied model is an expectations-augmented Phillips curve. Although the paper argues that the theory that should explain this negative relation is the demand for real balances, the evidence is also consistent with a simple bivariate association. </span></span></p>


Enfoques ◽  
2018 ◽  
Vol 2 (2) ◽  
pp. 97
Author(s):  
Dayana Castillo ◽  
Paola Oyola ◽  
Carlos Enrique Garavito Ariza

ResumenEl presente artículo presenta una aproximación teórica acerca de los factores de riesgo psicosocial asociados al trastorno de estrés postraumático en combatientes, como también el concepto de resiliencia como estrategia de afrontamiento ante los eventos de estrés postraumático en combatientes activos y las consecuencias en la aparición de depresión, ansiedad y síntomas asociados al estrés. Es así que se encuentra que el estrés desencadenado por un evento traumático se evidencia no solo en lo físico, sino también en lo emocional, afectando todos los contextos en los que se desarrolla el individuo. Para finalizar se presentan estrategias de desarrollo de resiliencia en población afectada por el conflicto armado. Las conclusiones del presente artículo dan cuenta del impacto del estrés postraumático en la población combatiente y la efectividad de la resiliencia como estrategia de afrontamiento. Resilience as a strategy for coping with post-traumatic stress in combatantsAbstractThis article presents a theoretical approach to the psychosocial risk factors associated with post-traumatic stress disorder in combatants, as well as the concept of resilience as a coping strategy in the face of post-traumatic stress events in active combatants and the consequences in the onset of depression, anxiety and symptoms associated with stress. Thus, it is found that the stress triggered by a traumatic event is evidenced not only in the physical, but also in the emotional, affecting all the contexts in which the individual develops. Finally, resilience development strategies are presented in the population affected by the armed conflict. The conclusions of this article show the impact of post-traumatic stress on the combatant population and the effectiveness of resilience as a coping strategy.  Resiliência como estratégia de enfrentamento do estresse póstraumático em combatentesResumoEste artigo apresenta uma abordagem teórica dos fatores de risco psicossocial associados ao transtorno de estresse pós-traumático em combatentes, bem como o conceito de resiliência como estratégia de enfrentamento frente a eventos de estresse pós-traumático em combatentes ativos e as conseqüências no início de depressão. , ansiedade e sintomas associados ao estresse. Assim, descobriu-se que o estresse desencadeado por um evento traumático é evidenciado não apenas no físico, mas também no emocional, afetando todos os contextos em que o indivíduo se desenvolve. Finalmente, as estratégias de desenvolvimento da resiliência são apresentadas na população afetada pelo conflito armado. As conclusões deste artigo mostram o impacto do estresse pós-traumático na população combatente e a eficácia da resiliência como estratégia de enfrentamento.


2021 ◽  
Vol 28 (2) ◽  
pp. 38-65
Author(s):  
K Rajashree ◽  
Sonika Bhardwaj

The law schools legal aid activities conducted through its clinics has come a long way in India especially since its inception in the early 1970’s. Its evolution has been gradual, intermittent and varied. Although The Bar Council of India (BCI) has mandated, establishing legal aid clinics as a pre-requisite for granting the necessary permissions before law schools start functioning, there are limited ideas of its purpose and objectives. An inherent lack of understanding its importance in terms of teaching, learning and research, the legal aid practices are largely left to the discretion of the individual law schools and interpretations of the individual faculty members. Combined with ideas heavily borrowed from the law schools in the US and individual experiences of the faculty members, legal aid practices in India are diversified. In the backdrop of this, the author intends to explore and map the aspiration of legal aid through an analysis of the key policy documents of legal education since India’s independence through an ontological framework. The ontology maps the aspirations of the legal aid clinics that was intended through these documents. Additionally, a case study of two important institutions have been taken as the case in point in order to verify whether the practices match such aspirations. Thereby, putting forth arguments that are critical for understanding the gaps between the aspiration and the state of reality. Key words: Legal aid Clinics, Law schools, Clinical, Legal education, Social justice


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