Isaac Appiah-OtooOxford Brookes University-Chengdu University of Technology · Business
Isaac Appiah-Otoo
Doctor of Philosophy
About
30
Publications
13,715
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Introduction
Dr. Isaac Appiah-Otoo currently works as a lecturer at Oxford Brookes University-Chengdu University of Technology, Chengdu, China. His research interest lies in financial economics, financial technology (Fintech), applied econometrics, energy and environmental economics, and development economics.
Skills and Expertise
Education
July 2022 - June 2024
Chengdu University of Technology
Field of study
- Economics
September 2017 - June 2022
September 2015 - June 2017
Publications
Publications (30)
We re‐examine the links between financial development and the real economy in Ghana given the gaps in the literature, recent happenings in the financial sector, new dataset, and the more active interventions by the Bank of Ghana to inform good policy decisions. By employing the Autoregressive Distributed Lag Bounds Cointegration approach (ARDL) and...
This study explored the role of financial development in foreign aid (measured by agriculture, humanitarian, health, economic infrastructure and services, and education aid) and economic growth relationship for 37 African countries spanning the 2002 to 2018 period. Using the instrumental variable generalized method of moments model, our findings in...
Poverty continues to be one of the biggest difficulties confronting humanity today, and eradicating poverty has become one of the most difficult tasks facing developing countries in their drive for long-term development. Accordingly, this study assesses the moderating role of institutional quality (measured by rule of law, regulation quality, contr...
This study investigates the effect of financial structure on renewable energy consumption in G20 countries, further categorized into BRICS, G7, developed, and developing countries. It also examines the economic growth channel through which financial structure affects renewable energy consumption and the causality relationships between the two. Usin...
This study contributes to the renewable energy consumption and economic growth discourse by examining how foreign direct investment moderates this relationship for a panel of 15 West African countries from 1990 to 2021. Applying the Panel-Corrected Standard Errors and the Feasible Generalized Least Squares techniques, the study shows that renewable...
This study examined the impact of information and communication technology (ICT) and the subcomponents of mobile, internet, and fixed telephone use on carbon dioxide emissions (CO2E) using a panel of 17 Middle East and North Africa (MENA) countries from 1995 to 2016 while controlling for economic growth, population, and energy consumption. Addition...
With rapid industrialization, rising fossil fuel consumption, and environmental concerns, developing clean and green energy is an inescapable option. Hydrogen has emerged as a significant potential energy carrier and a viable future replacement fuel for fossil fuels due to its renewable and pollution-free properties. Previous review papers have sig...
In order to decarbonize the global economy and reduce environmental degradation, it has become necessary to switch from using fossil fuels to renewable energy. However, a net zero global economy cannot be achieved without understanding the total renewable energy generation threshold and associated investment amount. This study estimates the renewab...
The adversities of climate change facing the world highlight the importance of reducing the rise of global carbon emissions (CO2E), which is a top priority for policymakers and researchers. Renewable energy is hailed as a remedy to the rise in global CO2E. However, there are persistently low levels of global renewable energy investment (REI). This...
This study estimates the impact of third-party online payment systems on trade, export, import, and Internet retailing in China. Also, the study examines the financial development mechanism via which third-party payment affects trade, export, import, and Internet retailing in China. By employing a sample of 31 provinces in China covering 2011 to 20...
Crowdfunding has recently emerged as a viable alternative funding source for renewable energy development and a driver of inclusive financial development and green economic growth; nevertheless, there exists limited empirics on the environmental contributions of crowdfunding. This study, therefore, closes this lacuna by examining the effect of crow...
This study assesses the impact of the Russia-Ukraine conflict on the carbon footprint of both Ukraine and Russia, while also examining the interdependence between the conflict and carbon footprint. Using quantile regression and wavelet coherence analysis, the results indicate that the conflict exacerbates environmental degradation by causing an inc...
Financial resources play an essential role in the growth of firms; nevertheless, providing small and medium-sized businesses with financial resources is still difficult, particularly in Africa. Recently, crowdfunding has emerged as a solution for these firms which were previously neglected by traditional banks; however, crowdfunding development in...
This study utilizes a scientometric/bibliometric analysis to map the status quo of research on finance-growth from 2005 to 2022. By using a sample of 404 articles from the Web of Science Core Collection database and the VOSviewer computer software, the study documented the following: First, research on finance-growth has reached the growth stage wi...
Greenhouse gas emissions have an impact on agricultural activity in the West African region, which is largely agrarian. As a result, most of the countries in the region are food insecure, and many people are malnourished. There is a lack of a multidisciplinary perspective that analyzes greenhouse gas emissions and proposes mitigation strategies to...
The Sustainable Development Goal (SDG) 1 requires countries to end poverty of all forms. At the same time, SDG 9 target 9.c calls for increasing Information and Communication Technology (ICT) access and striving to provide universal and affordable access to the internet in the least developed countries by 2020. While the existing studies have explo...
This research provides the very first empirical investigation of the impact of the Russia-Ukraine war on the cryptocurrency market (Bitcoin trading volume, and returns). The findings indicate that the Russia-Ukraine war impedes Bitcoin trading volume. A 1% increase in the Russia-Ukraine war leads to a 0.2% reduction in Bitcoin trading volume. The f...
This study analysed the influence of the ongoing Russia–Ukraine war on US oil prices. The quantile regression estimates revealed that the war increased oil prices. The wavelet coherence analysis also revealed that the war played a key role in oil prices. The study suggested policies that reduced oil prices, such as transition towards renewable ener...
In late December 2019, strange pneumonia was detected in a seafood market in Wuhan, China which was later termed COVID-19 by the World Health Organization. At present, the virus has spread across 232 countries worldwide killing 2,409,011 as of 17 February 2021 (9:37 CET). Motivated by a recent dataset, knowledge gaps, surge in global cases, and the...
Climate change remains one of the world's significant threats today, and thus Sustainable Development Goal (SDG) 13 prioritizes countries to reduce global greenhouse gas emissions and mitigate climate change by 2030. Recent studies have scrutinized the impact of Information and Communications Technologies (ICTs) on the environment. However, the maj...
The Ghanaian economy relies heavily on maize and soybean production. The entire maize and soybean production system is low-tech, making it extremely susceptible to environmental factors. As a result, climate change and variability have an influence on agricultural production, such as maize and soybean yields. Therefore, the study’s ultimate purpose...
Financial technology (fintech) has seen fast development recently in China; however, studies exploring the contributions of fintech to China's economic growth remain limited. Thus, this study motivated by the knowledge gaps and fast expansion of fintech examined: (i) the impact of fintech and the submeasures of third-party payment, credit, and insu...
To design and implement effective post-COVID-19 macroeconomics policies to tackle poverty in sub-Saharan African (SSA), policymakers need to understand the factors shaping poverty in the region. This paper investigates the effect of international remittances and financial development on poverty alleviation in 44 SSA countries from 2010 to 2019. The...
For the first time, this paper investigates the relationship between crowdfunding and renewable energy generation for a panel of 32 countries from 2013 to 2018. Applying the instrumental variable generalised method of moment, this study indicated that crowdfunding has a significant positive effect on renewable energy generation. Notably, 1% increas...
The effect of financial development measured by banks, bonds, and stocks on carbon dioxide emissions (CO2E) has been widely studied whilst not much is known about the effect of the insurance sector development on CO2E. Thus, this study fills this void by estimating the effect of insurance consumption on CO2E for BRICS (Brazil, Russia, India, China,...
Ending poverty in all its forms by 2030 remains the first agenda of Sustainable Development Goals set by the United Nations in 2015. Motivated by this agenda, this study examined the direct and indirect effect of financial technology (fintech) and its sub-measures of third-party payment and credit on poverty measured by household per capita consump...
This study examines the effect of economic policy uncertainty (EPU) on renewable energy (RE) growth for 20 countries using data for the 2000 to 2018 period. Our findings indicate that EPU has an insignificant negative effect on RE growth. The results from the causality analysis indicate no evidence of causality between EPU and RE growth.
We address the question: which countries-rich (high-income countries) or poor (middle-income and low-income countries)-tend to gain more from the Information and Communication Technology (ICT) revolution? By employing a panel of 123 countries consisting of 45 high-income countries, 58 middle-income countries, and 20 low-income countries from 2002 t...
We estimate the impact of COVID-19 on domestic credit in China over the period January 01, 2020 to June 30, 2020. Our findings show that an increase in COVID-19 confirmed cases/deaths significantly increases domestic credit in China; however, the magnitude of the impact is very small. The results from the impulse response analysis show that the res...
Questions
Questions (8)
Just type in the chatbox: suggest suitable journals for this abstract " copy and paste your abstract here" and press enter. (e.g. suggest a suitable journal for this abstract "We address the question: which countries-rich (high-income countries) or poor (middle-income and low-income countries) - tend to gain more from the Information and Communication Technology (ICT) revolution? By employing a panel of 123 countries consisting of 45 high-income countries, 58 middle-income countries, and 20 low-income countries from 2002 to 2017 and by constructing ICT index from mobile, internet, and fixed broadband, we find that in general ICT increases economic growth in both countries, however, poor countries tend to gain more from the ICT revolution." enter.
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Answer
It is possible to build a GMM with the number of observations (n) being lower than the number of time periods (t). However, in general it is recommended to have a larger number of observations than the number of parameters being estimated. This is known as the "curse of dimensionality" and can lead to overfitting and poor model performance. Additionally, a GMM requires estimation of the mean, covariance, and mixing proportion for each component, which may be difficult to do with a small number of observations. Therefore, it is generally recommended to have a sufficient amount of data when building a GMM model.
Answer
Nuclear power is a reliable and low-carbon source of energy that can play an important role in the transition to a more sustainable energy system. However, new technologies of renewable energy, such as solar and wind power, are becoming increasingly cost-competitive and could potentially replace nuclear power in the long term. The future of the energy sector is likely to be a mix of different technologies, with each playing a different role depending on the specific circumstances. The use of nuclear power will likely depend on factors such as cost, public acceptance, and the availability of other energy sources.
Answer
There are several economic theories related to energy and environmental pollution, including:
- The "polluter pays principle" states that the cost of pollution should be borne by the entity responsible for it, rather than society as a whole.
- The "coase theorem" states that when property rights are clearly defined and transaction costs are low, markets can lead to efficient outcomes even in the presence of externalities like pollution.
- The "tragedy of the commons" describes how shared resources, such as air or water, can be depleted or degraded when individuals act in their own self-interest.
- "Efficient pollution tax" is a policy tool that taxes polluters based on the amount of pollution they produce, providing an incentive for them to reduce their emissions.
- "Cap-and-trade" system is a market-based approach to controlling pollution by setting a limit on the total amount of emissions and allowing companies to buy and sell emissions permits.
- "Regulatory standards" is a policy tool in which government sets limits on the amount of pollution that can be emitted by firms, and penalties are imposed on those who exceed the limits.
Answer
There are several ways to measure human capital, and the most appropriate proxy will depend on the specific context and purpose of the analysis. Some commonly used proxies for human capital include:
- Education levels: This can include measures such as the percentage of the population with a high school diploma or higher, or the average number of years of schooling completed.
- Job skills: This can include measures such as the percentage of the population with specific job skills, such as proficiency in a foreign language or technical skills in a certain field.
- Income: This can include measures such as median or average income, which can be a proxy for the economic value of an individual's human capital.
- Health: This can include measures such as life expectancy, which can be a proxy for the physical and mental well-being of an individual, and a good indicator of productive capacity.
Ultimately, the most appropriate proxy for human capital will depend on the specific research question and the data available.
1. What test should I run if some variable have cross sectional dependency and some dont, incase of short panel data? by Md.Nurul Islam?
Answer
If you have short panel data and some variables have cross-sectional dependency while others do not, you can use a Hausman test to determine whether to use a fixed effects model or a random effects model.
The Hausman test compares the estimated coefficients from a fixed effects model and a random effects model, and tests the null hypothesis that the random effects estimator is more efficient. If the null hypothesis is rejected, then the fixed effects model should be used. If the null hypothesis cannot be rejected, then the random effects model is preferred.
Alternatively, you could also use an Arellano-Bond test, that test for the presence of autocorrelation in the residuals of a panel data model with fixed effects.
It is important to note that both test have assumptions, so it is important to check for the assumptions before using the test.
