System GMM Estimator Research Articles

Energy development and industrialization: evidence from Africa

Purpose The purpose of this study is to analyze the impact of energy development on industrialization in African economies from 1990 to 2017. It aims to assess how access to electricity, energy use and overall energy development contribute to industrial growth. By using panel data analysis and advanced econometric techniques such as fixed effects, two-stage least squares (2SLS) and system-GMM estimation, this study seeks to provide empirical evidence and insights into the complex dynamics between energy policies and industrialization outcomes. The findings are intended to inform policymakers and stakeholders on effective strategies to promote sustainable industrial development in the region. Design/methodology/approach This study uses a quantitative approach using panel data analysis spanning 1990–2017 from various sources. It uses fixed effects, 2SLS and system-GMM estimation methods to investigate the nuanced relationship between energy development and industrialization in African economies. This comprehensive methodology facilitates a robust examination of how different dimensions of energy development influence industrialization outcomes, aiming to fill gaps in existing literature and provide insights for policy formulation and implementation. Findings The findings reveal that energy development significantly enhances industrialization in African economies. Access to electricity and energy use both positively impact industrial growth, with access to electricity showing a stronger influence. This study underscores the critical role of energy infrastructure in fostering industrial expansion and economic development. Moreover, robust econometric methods confirm these relationships across various specifications, highlighting the importance of tailored energy policies to sustain industrialization efforts in Africa. These findings contribute empirical insights to the literature and provide actionable recommendations for policymakers aiming to enhance energy access and promote sustainable industrial development in the region. Originality/value This study contributes to the literature by offering new insights into the relationship between energy development and industrialization in African economies. By using advanced econometric techniques and focusing on nuanced dimensions of energy access and use, it addresses gaps in previous research. The findings underscore the significance of energy infrastructure for industrial growth, highlighting policy implications for sustainable development in Africa. This research adds value by providing empirical evidence that informs strategies to enhance energy efficiency, expand access to electricity and promote industrialization, thus contributing to broader discussions on economic development and energy policy in the region.

MINIMALNA PLAĆA I UDIO RADA U PROIZVODNJI: DOKAZI IZ SJEVERNE MAKEDONIJE

The objective of the paper is to understand whether the minimum wage plays a role in the labor share in the manufacturing sector in North Macedonia. We decompose the movements of the labor share into those along a share-capital curve, shifts of this locus, and deviations from it. We use the capital-output ratio, total factor productivity and input prices to capture these factors, while the minimum wage is introduced as an element that shifts the curve. We estimate a panel of 20 manufacturing branches over the period 2012-2019 with FE, IV and system-GMM estimators. We find that the role of the minimum wage for the labor share is industry-specific. In labor-intensive and low-paid industries, it increases workers’ labor share, which corresponds to a complementarity between capital and labor. For capital-intensive branches, it reduces labor share, likely through the job loss channel and along a substitutability between labor and capital. This applies to both branches where foreign investment and heavy industry are integrated.

Foreign Aid, Infrastructure, and the Inclusive Growth Agenda in Sub‐Saharan Africa

ABSTRACTThis study examines the contingency effect of infrastructure (disaggregated into physical and digital) in the relationship between foreign aid and inclusive growth in Sub‐Saharan Africa (SSA). We employ macro data for 41 SSA countries and the dynamic system GMM estimator for the empirical analysis. We find that (i) foreign aid promotes inclusive growth in SSA, (ii) whereas transport infrastructure enhances inclusive growth, energy infrastructure, sanitation infrastructure, and digital infrastructure are statistically insignificant, and (iii) only transport infrastructure amplifies the inclusive growth‐enhancing effect of foreign aid. Across the digital and physical infrastructure domains, we find that the contingency effect of the latter is rather remarkable. Our threshold analysis also indicates that for digital infrastructure and transport infrastructure to condition complementary policies to foster inclusive growth in SSA, minimum thresholds of 22% and 57.8% are required. We conclude that comprehensive transport infrastructural development is key if foreign aid is to enhance inclusive growth in SSA.

Determinants of Banks Profitability: Evidence from Nigeria Banking Industry

The study, investigated determinants of banks profitability in Nigeria. Other studies in this area concentrated on other profitability notions, this study incorporated Economic Value Added (EVA). Due to the presence of endogeneity problems inherent in most panel data sets of this nature we employed a two-step system GMM estimator to produce a robust estimation and account for the endogeneity problem in the data. The study revealed that bank size has a positive and significant impact on all measures of bank profitability with the exception of Net Interest Margin (NIM). This result remained consistent after macroeconomic factors were introduced in the model. The outcome also indicated that capital adequacy significantly explains bank profitability in Nigeria, with a sign change in the case of Economic Value Added (EVA) only. It was also evident that financial structure (FS) has a positive and significant impact on Return on Assets (ROA), NIM, and EVA but no evidence of significant relationship was found with ROE. The result indicated that liquidity risk (LR) has a negative and significant impact on ROA and EVA but failed to provide a significant impact on ROE and NIM. The result of the macroeconomic factors included in the model indicated that Gross Domestic Product (GDP) has a positive and significant impact on NIM and EVA while no significant relationship was found when related to ROA and ROE. Inflation as a macroeconomic variable showed a significant relationship with ROA and ROE with no evidence of significant relationship with NIM and EVA. It was concluded that the impact of firm specific factors and macroeconomic variables on the profitability of the Nigerian banking sector differ according to the profitability measure employed.

Unveiling the Nexus: Foreign Ownership, Innovation Dynamics, and Firm Performance through a Resource-Based Lens in Vietnam

This study investigates the complex relationships between firm resources, innovation, foreign ownership, and firm performance in the context of Vietnam's emerging market. Using a comprehensive dataset of 17,430 firm-year observations from 1,245 manufacturing firms across Vietnam for the period 2010 to 2023, we employ system GMM estimation to address potential endogeneity concerns. Our findings reveal non-linear effects of firm resources and foreign ownership on performance, measured by both ROA and Tobin's Q. Specifically, we observe inverted U-shape relationships for human capital and foreign ownership, diminishing returns for physical capital, and a positive squared term for R&D intensity. Moreover, we find that foreign ownership positively moderates the effects of firm resources on performance. These results are robust to alternative measures and subgroup analyses. Our study contributes to the literature by providing a nuanced understanding of firm performance drivers in Vietnam's unique institutional context, extending the applicability of resource-based and knowledge-based views to this emerging market. The findings offer valuable insights for managers and policymakers in Vietnam, highlighting the importance of balanced resource allocation, strategic innovation investments, and the potential benefits of foreign ownership in enhancing firm performance.

From death to birth: Do logistics parks help local renewals in logistics industry?

In the era of E-commerce and globalization, the logistics industry has become a new driving force for local economic development, with government-led logistics parks planned and constructed as a powerful policy instrument. Skeptical about whether logistics parks really take effect as expected, this paper investigates the local process of creative destruction in the logistics industry, focusing on how government-led logistics parks bridge between firm exit and firm entry during industrial renewal. Using firm-level data of third-party logistics firms in China from 2003 to 2021 and adopting system GMM estimator method, we verify that previous exit contributes to future entry but varies by the firm type and the city's importance in the regional transport network. Furthermore, we find two major roles of government-led logistics parks: (1) accelerating this process by providing the platform where various resources can be reused and reorganized into high-quality new logistics firms; and (2) prioritizing the rebirths from local existing firms over arrivals from other cities, though with some level of local protectionism. Government policies and planning decisions should maintain such function without inhibiting regional market integration.

Influence of green technology innovation and green finance on China’s carbon neutral performance: do synergistic effects exist?

ABSTRACT Achieving sustainable economic growth requires not only reducing pollutant emissions but also carbon emissions. Carbon neutral performance, which encapsulates both of these emissions, has become a vital evaluation indicator in attaining sustainable development. This study thus analyzes the role that green technology innovation, green finance, and their synergistic effects play in enhancing carbon neutral performance and achieving sustainable growth based on data from 30 provinces in China from 2010 to 2021. Methodologically, we use the system GMM (SGMM) estimation to minimize the potential exogeneity. Empirical results show significant regional heterogeneity in carbon neutral performance, with higher carbon neutral performance found in South China. Moreover, green finance alone does not play an essential role in carbon neutral performance. In contrast, green technology innovation can contribute to carbon neutral performance, and the synergistic effects of the two can contribute to carbon neutral performance via the capital allocation effect channel and the technology effect channel. Furthermore, the synergistic effects are heterogeneous, in terms of regional variables, the scale of local green finance and the carbon neutral performance levels. Accordingly, the study recommends that China implement policies to promote green financial development and green technological innovation and thereby promote sustainable development.

Economic Freedom and Income Inequality: An Empirical Note for the Post-GFC Period

This study examines the dynamic relationship between economic freedom and income inequality in 148 countries, focusing on the post-Global Financial Crisis (GFC) period. Utilizing the System-GMM estimation methodology to address endogeneity concerns, the research also reveals nuanced patterns in both developed and emerging markets. The analysis identifies a negative and statistically significant effect of the Economic Freedom Index (EFI) and all of its sub-components on income inequality. Our findings reveal three important implications: (i) The effects of sub-indicators are quite close to each other in emerging markets, but differ significantly in developed economies, suggesting that policymakers in developed countries should pay more attention to certain areas of freedom when implementing policies to reduce inequalities. (ii) For all panels, the surprisingly small effects of government size underscores the weak role of government spending in mitigating inequality. (iii) Regulatory efficiency emerges as a key factor in reducing income inequalities, urging policymakers to prioritize improvement in regulatory processes. Overall, this study enriches policiymakers’ understanding and offers actionable insights for addressing global income inequality.

The role of energy equity and income inequality in environmental sustainability

Progress in energy equity, income equality, and environmental quality are fundamental to sustainable development. However, studies providing evidence-based recommendations concerning the joint effect of energy equity and income inequality on environmental sustainability in Africa are lacking. This study fills this gap by using a panel dataset covering 41 African countries from 2008 to 2019. Results from the Driscoll-Kraay standard errors and the dynamic system GMM estimators reveal the following: (1) energy equity promotes environmental quality, whereas income inequality hampers it, and (2) income inequality nullifies the favourable environmental gains of energy equity. These findings remain consistent when we use the ecological footprint as an alternative measure of environmental quality. We conclude that addressing income inequality is essential for ensuring that energy equity enhances environmental quality. Policymakers should prioritise energy equity and fairer income distribution initiatives to achieve sustainable development goals.

ESG controversies and insolvency risk: evidence from the insurance industry

PurposeThis study investigates the relationships between environmental, social, and governance (ESG) controversies and insolvency risk in the insurance sector. Drawing from legitimacy and stakeholder theories, the authors explore the impact of ESG controversies on insurers’ insolvency risk and the moderating effect of ESG practices on this relationship.Design/methodology/approachThis study utilises a dataset comprising 120 stock insurance firms spanning from 2011 to 2022. The authors employed system-GMM estimations to control for potential endogeneity and conducted several robustness checks.FindingsESG controversy positively influences insurers’ insolvency risk, with ESG practices mitigating these positive effects. The Governance (G) component of ESG practices plays a key role in counteracting the effects of ESG controversies on insurance companies’ insolvency risk.Originality/valueThis is the first study to investigate the direct relationship between ESG controversies and insolvency risk in the insurance industry. It underscores the critical influence of stakeholders’ perceptions of the company’s legitimacy, which is determined by the number of ESG controversies undertaken by the insurer company, on its insolvency risk. Additionally, by examining the three components of ESG practices individually, the authors offer insights into how managers can gain a competitive edge, particularly by utilising governance practices as safeguards against the adverse effects of ESG controversies on their financial risk.

The role of female directors in family firms’ annual report´s readability

PurposeThis paper investigates the impact of board gender diversity on the readability of the annual reports of family-controlled public companies.Design/methodology/approachGrounded in the premises of the restricted and extended views of the socioemotional wealth (SEW) approach and executive power theory, this paper explores the ways in which family-affiliated female directors influence report readability in a sample of 133 publicly traded US companies listed in the Fortune 1,000. We use the system GMM estimator, which deals with two key sources of endogeneity by controlling first for reverse causality, using the lags of the endogenous variables as instruments, and then for omitted variables, capturing the individual effect.FindingsOur analysis confirms that the significant enhancement in annual report readability is associated with the presence of female family directors, particularly those who are insiders within the company. In contrast, non-family female directors and family outsider directors appear to have a negative impact on annual report readability.Originality/valueWhile scholars have increasingly focused on variations in annual report readability among family firms, the contribution of female directors to this phenomenon has received minimal attention. In our study, we integrate the theories of restricted and extended SEW perspectives with the theory of women’s executive power within the board. This integration is essential for considering two critical factors: firstly, the primacy of their SEW objectives, and, secondly, their legitimacy within the board.

Cross-border banking and bank stability: evidence from Sub-Saharan Africa

AbstractBased on bank-level data from 29 Sub-Saharan African countries between 2005 and 2019, we apply panel fixed effects (FE) and two-step system GMM estimators to investigate whether increased cross-border banking affects domestic banking sector stability. We find significant evidence that the stability of banks in host countries declines with an increased presence of foreign banks—and the impact is more pronounced on banks that are small and less efficient. The stability impact of foreign banks is also found to depend on the quality of governance institutional factors in the host country. The findings shed some important insights on the downside of financial liberalisation policy in developing countries and the need for increased cross-border collaboration between home and host supervisory authorities in the SSA region—especially in jurisdictions where the foreign bank affiliates are systemically important. The domestic supervisory authorities thus need to effectively manage the inherent trade-off between reaping the benefits from international financial integration while effectively safeguarding domestic banking systems against cross-border contagion and fragility.

Recent trends in firm‐level total factor productivity in the UK: new measures, new puzzles

AbstractUnderstanding the poor productivity performance of the UK economy since the financial crisis is complicated by the well‐known challenges in estimating total factor productivity (TFP) using only revenue data. We develop a structural framework to infer quality‐adjusted TFP from an estimated firm‐level revenue function. We use microdata for two sectors previously identified as being significant contributors to the UK's productivity growth slowdown—manufacturing and ICT—from 2008 to 2019. The revenue function is estimated using the Blundell–Bond System GMM estimator. We also use an alternative cost‐shares approach to identifying and measuring TFP. For both methods, we find an overall fall in TFP levels in manufacturing and a rise in ICT. We find a striking decline of between 13% and 18% in the level of within‐firm manufacturing TFP, and of between 11% and 16% in ICT, although with reallocation effects differing between the two sectors. The finding of declining within‐firm TFP is robust, although the magnitude varies between methods. We discuss a possible explanation for this extended UK productivity puzzle based on the relative underperformance of UK firms in international markets.

Analysis of the carbon emissions trend in the Indian manufacturing sector: a decomposition and decoupling approach.

There is a growing emphasis on fostering green growth and lowering carbon emissions in order to achieve sustainable economic development. This study uses the Tapio decoupling model and analyzes the factors influencing changes in carbon emissions from manufacturing in India utilizing the log mean Divisia index (LMDI) techniques. Furthermore, the nexus between carbon emission intensity, information and communication technology (ICT), total factor productivity (TFP), skill, and energy intensity has been analyzed using the system-GMM approach. It is based on the plant-level Annual Survey of Industries (ASI) datasets for the organized manufacturing sector of India from 2001 to 2002 to 2019 2020 for the major 21 Indian states/UT. The findings reflect the presence of weak decoupling in the manufacturing sector both at the aggregate level and in states. This indicates that both output and emissions are increasing; however, output growth surpasses emission growth, which signifies an effort to transition towards more environmentally friendly production methods and enhanced energy efficiency. The output and population effect are found to be leading factors in carbon emissions, while energy intensity is found to be reducing the effect. Further, the system-GMM estimates show that ICT and energy intensity positively affect total factor productivity, while with an increase in carbon emission intensity, productivity declines. The study confirms the existence of an inverted N-shaped Kuznets curve in the sector. This present study will contribute to formulating energy and environmental strategies to reduce emissions and promote adopting cleaner energy sources. These efforts will facilitate the attainment of carbon neutrality and enhance energy efficiency within the sector.

Financial inclusion, competition and financial stability: New evidence from developing economies

This study utilizes cross-country data from 2002 to 2019 from 60 selected developing countries to explore the impact of competition and financial inclusion on financial stability. Employing the system GMM estimator, compelling evidence is revealed, highlighting a number of key findings. Firstly, it is observed that financial inclusion has a weakening effect on financial stability within developing countries. Conversely, competition among these nations demonstrates a significant capacity to bolster financial stability. Additionally, the study underscores the pivotal role of financial development, identifying it as a primary driver that enables financial inclusion to positively influence financial stability within developing nations. Furthermore, the introduction of the square term of financial inclusion yields noteworthy insights, revealing a nonlinear relationship. Specifically, the findings suggest that strategic investments in the financial inclusion of developing countries have the potential to enhance financial stability up to a certain threshold. Therefore, for emerging economies seeking to fortify their financial stability, prioritizing efforts to augment financial inclusion is imperative. Over the long term, such endeavors have the potential to yield tangible improvements in financial stability.In conclusion, the research offers valuable policy implications. These include recommendations aimed at fostering greater financial inclusion within developing economies as a means of bolstering overall financial stability. By heeding these suggestions and implementing targeted policies, policymakers can work towards cultivating a more resilient and robust financial landscape within their respective nations.

Examining the impact of intra-industry trade on business cycle alignment within the ECOWAS

PurposeThis paper aims to examine the impact of intra-industry trade on business cycle synchronization within the Economic Community of West African States (ECOWAS). ECOWAS region is characterized by limited intracommunity trade and a low level of foreign direct investment.Design/methodology/approachFirst, this research uses the two-digit level harmonized system classification to measure intra-industry trade, which is straightforward to interpret and compute, making it suitable for countries with low trade intensity. Second, it uses the system generalized method of moments (system-GMM) to examine the dynamic relationship between variables and address endogeneity concerns.FindingsThe results obtained from the system-GMM estimation reveal a positive and significant correlation between intra-industry trade intensity and business cycle synchronization, as well as an inhibiting effect of economic freedom on the relationship between intra-industry trade and business cycle synchronization. These results highlight the need to implement policies aimed at reducing tariff barriers, improving financial integration and intensifying production.Originality/valueThis research analyze the link between intra-industry trade and business cycle synchronization within the ECOWAS. It also analyze the role of economic freedom on the link between intra-industry trade and business cycle synchronization.

The asymmetric impact of monetary policy and firm leverage on firm investment: some insights from Pakistan

PurposeThis paper aims to investigate whether negative and positive monetary policy (MP) shocks have asymmetric impacts on corporate firms’ investment decisions in Pakistan using firm-level panel data set. Moreover, the authors emphasized on symmetric effects of MP; the authors examine whether high-leverage and low-leverage firms respond differently to negative and positive unanticipated shocks in MP instruments.Design/methodology/approachIn contrast to the conventional framework of VAR, it uses an alternative methodology of Taylor rule to estimate unanticipated MP shocks. The two-step system-generalized method of movement (GMM) estimation method is applied to examine the effect of MP shocks on firm investment through leverage-based asymmetry.FindingsThe two-step system-GMM estimation results indicate that unanticipated negative changes (unfavorable shocks) in MP instruments have negative, significant effects on investment. In contrast, unanticipated positive changes (favorable shocks) have statistically insignificant impacts on firm investment. The results also reveal that firm leverage has a significant role in establishing the effect of unanticipated negative changes in MP instruments on investments. Finally, the results indicate that high-leverage firms respond more to negative changes than low-leverage firms. Yet, the results show that only low-leverage firms positively respond to unanticipated positive shocks in MP.Practical implicationsThe findings of the paper suggest that MP authorities should pay due attention to the asymmetric effects of MP shocks on firm investment while designing MP. Because firm leverage has a significant influence on the effects of MP shocks, firm managers should take into account such role of leverage while deciding capital structure of their firms.Originality/valueFirst, unlike “Keynesian asymmetry” and most of published empirical research work, the authors use both unanticipated negative and positive MP shocks simultaneously. Departing from the conventional empirical literature, the authors differentiate between unanticipated positive and negative shocks in MP using the backward-looking Taylor rule. Second, the authors contribute to the existing literature by investigating the differential effects of positive and negative unanticipated MP shocks on firms’ investment decisions. Unlike the published studies that have emphasized on the symmetric effects of MP, the authors examine whether high-leverage and low-leverage firms respond differently to negative and positive unanticipated shocks in MP instruments.

Unlocking Desire: Exploring the Impact of Seductive Forces of Political Risk, Financial Inclusion, and Competition on Bank Stability in Emerging Markets

This research inquiry overlaps financial services inclusion and a national government's risk of political instability, competition, and banking system stability. It is the analysis of 22 emerging market countries from 2016 to 2021. The research is going to be based on GMM-System dynamic data panel estimate method and the aim is to illuminate the interplay of these factors and to detect their impact on the banking industry sustainability. The point estimates derived from the GMM-System estimation reveal that several of the main conclusions have been reached. The main point to note is that, in general, the more inclusive financial system, the more stable banking sector there will be in the world. What this finding stresses is the necessity of an inclusive financial system to strengthen banks by being a part of the ever-growing body of evidence on how financial inclusion can foster economic growth and stability. Not only does the evidence support the assumption that political unrest and financial markets have a strong relationship, but also the numbers show that this relationship is highly likely. In the case of a country where political instability is reduced, the financial sector turns out to be more viable, the study reveals. Political risk is of a great significance for financial markets and banking systems, and therefore call for political stability as a fundamental for the reliable banking system. Taken together, the finding of the study will be very useful for not only government officials but also the banking sector. The output reaffirms the fact that financial inclusion, competition and political risks are the key components for the sector stability increase. Such factors have a very important influence on the policy, regulation, and strategic decision of banking. These findings show the imperativeness of political and corporate leaders to make progress in increasing financial accessibility, allowing fair competition, and safeguarding political stability so that banking sectors may be reinforced and thus, the world's banking systems may become more resilient.Keywords: Political Risk, Financial Inclusion, Bank Stability, Emerging Economies, Competition.

Commodity price volatility, institutions and economic growth: An empirical investigation

AbstractThis article investigates the role of institutional quality in transmitting effects of commodity price volatility to economic growth. To do so, we collect data on 107 primary commodity exporting countries in both developing and developed ones over the period 1976–2015. Our empirical approach is based on Solow growth model framework (Solow, R. M. (1956). The Quarterly Journal of Economics, 70(1), 65) and consists of estimating a dynamic panel model using the two‐step system GMM estimator. Our results show evidence that commodity price booms are associated with good economic performances that are unfortunately wiped out by the negative effects of price volatility in developing commodity‐dependent countries (CDCs). The main channel through which this volatility affects economic growth turns out to be through factor productivity. Finally, we have formally established that the negative effect of price volatility in CDCs is mainly due to the poor quality of institutions in these countries. These results suggest that it is important for commodity‐exporting economies, especially developing CDCs, to work on building strong economic and political institutions to guard against the risk of commodity price volatility.

From Kyoto to Paris and beyond: A deep dive into the green shift

This study investigates the impact of the Kyoto Protocol and its associated regime, the Paris Agreement, on environmental outcomes and the green transition. We employ a difference-in-differences (DD) specification for country-level panel data from 1995 to 2018. The DD estimates suggest that the Kyoto Protocol of 2005 significantly reduced CO2 emissions and natural resources rents by around 20 percent and decreased the quantity of non-renewable electricity generated by about 36 percent, relative to the pre-Kyoto period. The protocol also led to increases in renewable energy consumption and generation of 18 percent and 60 percent, respectively. Robustness checks using system GMM estimates confirm that the effects of the Kyoto Protocol are likely not biased because of dynamic endogeneity from simultaneity problems or confounding trends. For the Paris Agreement, given documented issues in interpreting the average treatment effects using standard two-way fixed effects (TWFE), we leverage a DD specification with multiple treatment timings. We find no statistically significant effect of the Paris Agreement 2016 on the green transition except that it contributes to reducing CO2 emissions. The absence of a significant impact from the ad hoc Paris Agreement on most outcomes points to the need for greater effort in implementing environmental treaties.