Empirical Strategy Research Articles

Information communication technology and manufacturing industry exports based on technology intensity in OECD and non-OECD countries

Studies on the effect of Information and Communication Technology (ICT) on the export of the manufacturing industry, as disaggregated into the low-, medium-, and high-technology intensity, were lacking. However, the trade impact of ICT is mixed and relies on countries’ development and adoption of technology. To this end, this study explicitly contributes to this strand of literature. By using some key and popular ICT indicators we examined the comparative influence of ICT on the manufacturing industry exports defined by their technology intensity/adoption in OECD and non-OECD countries. A panel data technique with the PPML (Pseudo-Poisson Maximum Likelihood) covering the period 2010–2018 was applied for the analysis. Our empirical strategy indicates that internet use only promotes manufacturing exports of high-technology intensity in OECD countries. Low-technology intensity manufacturing exports were negatively affected by an increase in the use of the internet in all the samples of non-OECD and OECD economies. Except for high-technology, an increase in mobile phone subscribers is associated with increased manufacturing exports in all categories of industries and all sample countries. Broadband subscriptions only positively affect exports of low-technology intensity in OECD countries and negatively affect exports of medium-technology in non-OECD countries. The economic complexity index shows a positive influence on exports in OECD and non-OECD countries except for low-technology intensity. Human capital has been found to influence manufacturing exports in OECD countries and reduce exports in non-OECD countries. In both the OECD and non-OECD countries, positive and significant effects of GDP and trade were observed in all categories of technology adoption. These findings imply that in OECD and non-OECD countries ICT is an important aspect worth considering in trade policy making due to its significant influence on exports. ICT services need to be checked by the government to ensure quality, efficient, and effective delivery for better export. Findings also support the practical significance of ICT especially in developing OECD countries.

The Returns to STEM Programs for Less-Prepared Students

The returns to selective STEM programs depend on whether students complete these programs, earnings conditional on completion, and counterfactual schooling choices. Much research has focused on only one of these margins, potentially leading to an incomplete picture of the returns to STEM education for students with less academic preparation. Using data from a Colombian university and two empirical strategies, we find less-prepared students have higher earnings returns to selective STEM programs than more-prepared students, even though they are less likely to complete these programs. A key mechanism is that less-prepared students have lower-paying counterfactual schooling options. (JEL I23, I26, J24, J31, O15)

Compliance status of tobacco control laws in the university setting of Bangladesh: an analytical study followed a mixed-method approach

BackgroundImplementation of National Tobacco Control Laws (NTCLs) in university settings was found to be worse in Bangladesh.ObjectivesThis study aimed to depict the compliance status of tobacco control laws (TCLs) and...

Impact of Climate Policy Uncertainty, Clean Energy Index, and Carbon Emission Allowance Prices on Bitcoin Returns

This research aimed to investigate the relationship between climate policy uncertainty (CPU), clean energy (ENERGY), carbon emission allowance prices (CARBON), and Bitcoin returns (BTC) for the period from August 2012 to August 2022. The empirical analysis strategies utilized in this study included the Fourier Bootstrap ARDL long-term coefficient estimator, the Fourier Granger Causality, and the Fourier Toda–Yamamoto Causality methods. Following the confirmation of cointegration among the variables, we observed a positive relationship between BTC and CARBON, a positive relationship between BTC and CPU, and a negative relationship between BTC and ENERGY. In terms of causal associations, we identified one-way causality running from CARBON to BTC, BTC to CPU, and BTC to the ENERGY variable. The study underscores the potential benefits and revenue opportunities for investors seeking diversified investment strategies in light of climate change concerns. Furthermore, it suggests actionable strategies for policymakers, such as implementing carbon taxes and educational campaigns, to foster a transition towards clean energy sources within the cryptocurrency mining sector and thereby mitigate environmental impacts.

Continuous trading strategy based on deep reinforcement learning

Automatic trading policy has been researched with reinforcement learning (RL). Designing a profitable and applicable policy is of great significance for research in quantitative finance. Incoprating with deep learning, typical deep reinforcement learning (DRL) algorithms such as Proximal Policy Optimization (PPO) have shown their effectiveness. To improve the practical applicability, the manner in which we train our model should better simulate the dynamic of the stock market. A sliding window training strategy is a better solution, which employes training, validation and trading procedures on dataset with a sliding window. However, this empirical strategy can still be further investigated in algorithm evaluation and the experiment designation such as choice of sliding window. In this paper, we further investigated the continuous trading strategy (CTS). We evaluated the performance of a wider range of algorithms, including PPO, Deep Deterministic Policy Gradient (DDPG), Advantage Actor-Critic (A2C), Soft Actor-Critic (SAC). Moreover, we trained our models on a longer term period. We also provide detailed observations and suggestions on experiment settings. These discussions will facilitate researchers in their future work.

Advanced Digital Technologies in Unionized Firms

AbstractThis work examines how workplace employee organizations causally affect the adoption of advanced digital technologies in Italy. It does so by using information from the survey “Rilevazione Imprese e Lavoro” conducted by the National Institute for Public Policy Analysis on a nationally representative sample of Italian firms in the non-agricultural private sector in 2018. It shows that workplace employee organizations increase the probability of advanced digitalization by around 15 percentage points per year, and the number of different technologies adopted by 0.41. The empirical strategy follows an IV approach that eliminates simultaneity bias and builds upon a lagged internal instrument combined with a NUTS-3 measure of altruism—namely, per capita blood donations. Results survive when cybersecurity is excluded from the analysis and prove robust when the internal instrument is left alone, combined with an index of tolerance or with propensity score matching.

Epidemiological patterns of candidaemia: A comprehensive analysis over a decade.

The prevalence of fungal bloodstream infections (BSI), especially candidaemia, has been increasing globally during the last decades. Fungal diagnosis is still challenging due to the slow growth of fungal microorganisms and need for special expertise. Fungal polymicrobial infections further complicate the diagnosis and extend the time required. Epidemiological data are vital to generate effective empirical treatment strategies. The overall aim of this project is to describe the epidemiology of monomicrobial candidaemia and polymicrobial BSI, both with mixed fungaemia and with mixed Candida/bacterial BSIs. We conducted a single-centre retrospective epidemiological study that encompasses 950,161 blood cultures during the years 2010 to 2020. The epidemiology of monomicrobial and polymicrobial candidaemia episodes were investigated from the electronic records. We found that 1334 candidaemia episodes were identified belonging to 1144 individual patients during 2010 to 2020. Candida albicans was the most prevalent species detected in candidaemia patients, representing 57.7% of these episodes. Nakaseomyces (Candida) glabrata and Candida parapsilosis complex showed an increasing trend compared to previous studies, whereas Candida albicans demonstrated a decrease. 19.8% of these episodes were polymicrobial and 17% presented with mixed Candida/bacterial BSIs while 2.8% were mixed fungaemia. C. albicans and N. glabrata were the most common combination (51.4%) in mixed fungaemia episodes. Enterococcus and Lactobacillus spp. were the most common bacteria isolated in mixed Candida/bacterial BSIs. Polymicrobial growth with candidaemia is common, mostly being mixed Candida/bacterial BSIs. C. albicans was detected in more than half of all the candidaemia patients however showed a decreasing trend in time, whereas an increase is noteworthy in C. parapsilosis complex and N. glabrata.

Oppression of Catholics in Prussia does not explain spatial differences in support for the radical right in Germany. A critique of Haffert (2022)

A growing literature links contemporary far-right mobilization to the “legacies” of events in the distant past, but often, the effects are small, and their estimates appear to rely on problematic assumptions. We re-analyse Haffert's (2022) study, a key example of this strand of research. Haffert claims that historical political oppression of Catholics in Prussia moderates support for the radical right AfD party among Catholics in contemporary Germany. While the argument itself has intellectual merit, we identify some severe limitations in the empirical strategy. Retesting the study's cross-level interaction hypothesis using more suitable multi-level data and a more appropriate statistical model, we find a modest overall difference in AfD support between formerly Prussian and non-Prussian territories. However, this difference is unrelated to individual Catholic religion or to the contextual presence of Catholics. This contradicts the oppression hypothesis. Our study thus provides another counterpoint to the claim that historical events have strong and long-lasting effects on contemporary support for the radical right. We conclude that simpler explanations for variations in radical right support should be exhausted before resorting to history.

Law Enforcement for Fraud Offenders on behalf of Banks Through Online According to Islamic Criminal Law

This research aims to find out the modus operandi of criminal fraud on behalf of banks through online, to find out law enforcement for fraud perpetrators on behalf of banks through online at the North Sumatra Regional Police, and to find out the review of Islamic criminal law in fraud cases on behalf of banks through online. This research uses a qualitative empirical research strategy in the field of law. Interviews with members of the North Sumatra Regional Police became the main data source, while literature surveys of online journals, papers, and articles related to fraud legislation became secondary data. Data reduction, data presentation, and conclusion drawing are the three stages of qualitative data preparation. Article 378 of the Criminal Code can be used to regulate the crime of online fraud, according to the above study. To strengthen the legal basis, Article 28 paragraph (1) of the ITE Law can be followed. Islamic criminal law, which is based on hadith and the Quran, does not provide clear guidelines on how to deal with internet fraud involving banks. Islamic law includes general principles that should be followed, and their application depends on the interpretation of local scholars or religious authorities. In the case of online fraud on behalf of a bank, which is included in the crime of fraud, it can be subject to ta'zir punishment such as a stern warning, a material fine whose amount is adjusted to the victim's loss, imprisonment, flogging, or also exile from society for a while.

Why gendered quantification trends are a problem: Post-traumatic growth arguments and the civil war malestream

Feminist scholars have long debated quantification trends in the social sciences. Of particular concern has been the extent to which the prestige assigned to quantitative methods may reinforce ‘malestream’ dynamics in academic knowledge production. ‘Malestream’ dynamics include the (implicit or explicit) privileging of a male-centric lens in the research process and the association of ‘hard’ numerical data with notions of ‘scientifically superior’ masculinity. We build on these discussions by asking how the rise in quantitative writings may affect gender disparities in the civil war literature. Using descriptive data from a newly coded dataset that contains 1,851 articles published in high-ranking journals between 1998 and 2018, we, firstly, illustrate how – in the generally male-dominated field of civil war research – the author gender gap is particularly pronounced among quantitative writings. Secondly, we present an in-depth discussion of three articles that use statistical analysis to test the effects of violence on prospects of post-traumatic growth. A distinct difference between the three articles is that they tend to be more sceptical of arguments on ‘positive change’ following violence the more account they take of gender differentiation in their theoretical framing and/or empirical identification strategy. All in all, our arguments call for greater awareness of gender bias in quantitative research, and for more rigour in currently hegemonic standards of what ‘counts’ as reliable evidence.

Pharmacotherapy and noninvasive neurostimulation for neuropathic pain

Neuropathic pain poses a significant challenge due to its complex mechanisms, necessitating specific treatments. In recent decades, significant progress has been made in the clinical research of neuropathic pain, marking a shift from empirical strategies to evidence-based medicine in its management. This review outlines both pharmacological and non-pharmacological interventions. Antidepressants (tricyclic and serotonin-noradrenaline reuptake inhibitors), antiepileptics (gabapentin, pregabalin), and topical agents constitute the main pharmacological treatments. These approaches target peripheral or central mechanisms associated with neuropathic pain. Noninvasive neurostimulation, including transcutaneous electrical nerve stimulation (TENS) and repetitive transcranial magnetic stimulation (rTMS), provides non-pharmacological alternatives. However, challenges persist in effectively targeting existing medications and developing drugs that act on novel targets, necessitating innovative therapeutic strategies.

Contagion and linkages across international currencies

This paper examines dynamic linkages among international currencies in the face of several turmoil episodes including the global financial crisis (GFC), eurozone sovereign debt crisis (ESDC) and the recent COVID-19 pandemic. We utilize weekly data from August 2005 till December 2022. Our empirical strategy consists of identification of crisis periods using a Markov-switching VAR, followed by estimation of the dynamic conditional correlations using an ADCC-GARCH model and testing for the impact of the crises using a regression model with robust standard errors. We compare impact of the episodes on the dynamic correlations across the currency pairs. Our findings suggest that correlation between developed economy exchange rates increased significantly during these episodes implying existence of a contagion effect. While significant negative correlation coefficients were observed across all pairs with Japanese Yen during GFC and ESDC, indicating flight to quality. We analyse factors that may be responsible for changes in co-movement of the currencies during the study period and find that financial stress, emergence of the pandemic and geo-political risk have a significant role to play.

Nearby or faraway? Determinants of target selection in family firm acquisitions

We posit that, beyond the distinction between domestic and cross-border deals, family ownership configurations and board ownership determine whether family firms (FFs) prefer targets from closer or more distant markets, thus highlighting the crucial role of geographical distance when conducting acquisitions abroad. We further investigate whether target selection depends on firm performance relative to its aspirations. To test our hypotheses, we gather a comprehensive sample of 7297 acquisition deals, of which 3180 are cross-border transactions, undertaken by family and non-FFs from 30 European countries during the 2007–2015 period, with target firms located in 65 different countries. Our empirical strategy allows us to analyze FFs’ preference in terms of geographical distance when they decide to acquire a foreign company. The main findings suggest that FFs acquire targets from closer locations when there is a group of minority family shareholders or a higher level of board ownership. Meanwhile, FFs performing below their aspirations acquire more distant targets compared to other FFs. Our findings contribute to international business (IB) research by demonstrating that the distinction between domestic and foreign targets is not enough when investigating acquisitions, but the distance to the target firm is vital for a better understanding of cross-border deals.

Unraveling the links between development, growth, and tourism specialization. A country-panel analysis using self-organizing maps

This research explores the relationship between development, economic growth and tourism specialisation in 123 countries between 1995 and 2019. Based on the hypothesis that a single model is inadequate to capture the complex dynamics between these variables, we classify countries before studying the link within each category. The empirical strategy is based on the application of an objective country classification procedure, known as Kohonen’s self-organising maps. This methodology, novel for this field of study, allows countries to be grouped based on the dynamics of several variables. Three distinct groups emerge from this process. We find that causality from tourism specialization to GDP growth and from tourism to human development are observed in low-income countries. While no reverse causality between HDI and tourism is observed in any of the specifications, causality from GDP growth to tourism is verified in the group of high-income countries with heightened tourism specialisation and development.

Does trade openness improve or worsen public governance in sub-Saharan Africa?

The literature on the effect of trade openness on public governance shows contrasting results. Using a renewed empirical strategy, we contribute to the understanding of this indeterminacy by studying the influence of trade openness on public governance in Sub-Saharan Africa. We also examine how this effect varies with structural characteristics that may be subject to reforms. In this respect, we use an original measure of trade openness. We consider public governance and its three dimensions, namely economic governance, political governance, and institutional governance. Overall, we find that trade openness improves public governance, political governance, and economic governance. On the other hand, it worsens institutional governance. Moreover, these effects of trade openness on the dimensions of public governance depend on the defined levels of technology transfer, foreign direct investment, and natural resources. Our results are robust to different openness and governance indicators, alternative specifications, study periods, endogeneity, and cross-sectional dependence. Above all, they highlight the interest of dissociating public governance to understand the contrast observed in the empirical literature.

Experiences in developing empirical harvest strategies for the Indonesian tropical tuna fisheries

Harvest strategies, also referred to as management procedures, are foundational to evidence-based fisheries decision making. Together with closed-loop simulation testing, termed Management Strategy Evaluation, of potential harvest strategies, they are considered to be best practice. However, the use of these approaches is still mostly limited to a small minority of high-value, data-rich stocks in developed economies. The Indonesian tropical tuna fisheries provide a rare real-world experience where formal empirical harvest strategies were being developed for data-limited fisheries within a developing economy as an operational management tool. The Harvest Strategy Framework is a departure from a previously open-access fishery for tropical tuna in Indonesian archipelagic waters. It outlines the necessary actions to operationalize the harvest strategy, including fisheries monitoring, harvest control rules, associated management measures to meet the management objectives, and immediate actions to reduce the levels of catch as a precautionary measure until the harvest strategy is fully implemented. It was developed over a 9-year national consultative process, commencing in 2014 and culminating in the official adoption of the framework in June 2023. This paper outlines key processes and challenges encountered in stakeholder engagement and technical capacity development within the intricate governance context of Indonesia. We argue that the engagement processes have cemented a future direction towards sustainable and best practice fisheries management in Indonesia and the effective co-production process has potential to show the way for other fisheries in coastal developing states who face similar challenges in managing their national and internationally shared stocks.

Incidence, causative organisms, and risk factors of bloodstream infections in pediatric liver transplant patients: a systematic review.

Bacterial bloodstream infections (BSI) are the leading cause of mortality and morbidity in pediatric solid organ transplant recipients. This systematic review aimed to pool global data from leading transplant institutions and identify the overall incidence, risk factors, and causative organisms of BSI in pediatric liver transplant recipients. A systematic review of the PubMed and OVID databases was conducted from 2000 to 2022. The initial search yielded 252 unique articles, which were independently reviewed by 2 authors. Articles that reported pediatric-specific data on BSI in isolated liver transplant patients were included, including the incidence of BSI, isolated organisms, and involved risk factors involved. This systematic review was registered with PROSPERO (ID: CRD42023403206). Fourteen articles from the United States, France, Iran, Japan, Korea, South Africa, Thailand, and Turkey were included. A total of 4,812 liver transplants were included in the final analysis. The mean patient age was 25 months (age range, 0-18 years), and 50.9% were male. The overall incidence of BSI was 23.5% (range, 14.7%-55%). The most commonly reported organisms were Staphylococcus epidermidis, Enterococcus, Klebsiella spp., and Escherichia coli. Among the risk factors studied, postope rative biliary complications, a medical history of biliary atresia, and younger age were the risk factors most commonly associated with BSI. Bacterial BSI after pediatric liver transplantation occur at a high incidence, with a unique organism profile notable for a higher percentage of gram-negative organisms. Further studies are required to determine the most appropriate prophylactic and empirical antibiotic management strategies for this population.

The Effects of Housing Price Declines on Children's Educational Outcomes

Abstract We examine the effects that household exposure to housing price declines, captured by measures of negative equity, have on children's academic performance, using data on public school students and housing transactions from the State of Florida. Our empirical strategy exploits variation over time in the timing of family moves to account for household sorting into neighborhoods and schools and selection into initial mortgage terms. In contrast to the existing literature on the effects of foreclosure, we find that students with the highest risk of negative equity exhibit significantly higher test score growth, with the largest effects among Black students and students qualifying for free or reduced-priced lunch. We find evidence supporting two underlying mechanisms: (1) families in negative equity may reduce the impact of income losses on consumption by forgoing mortgage payments, and (2) families exposed to high levels of negative equity may move to schools that received higher average school report card grades. While negative equity and foreclosure are undesirable, negative equity may have encouraged homeowners to forgo mortgage payments to mitigate the impact of the Great Recession, and temporarily reduced the housing market barriers low-income households faced in accessing educational opportunities.

On Vaulting: Heron’s Manuals and Their Role in Roman Dome Design

The subject of domes in the Roman world is complex and can be studied from different perspectives. In this paper we focus on the relationship between Heron of Alexandria's manuals and the vaulting systems of the Hadrianic age. Our aim is to compare a selection of formulae from the critical edition by Johan Ludvig Heiberg with a series of buildings recently documented using photogrammetric and laser scanner technologies. The collection of writings Heronis Alexandrini opera quae supersunt omnia (mainly books IV and V) presents an interesting set of formulae for calculating vaults and domes: volumes and areas of niches, spherical segments, lunettes, as well as empirical strategies for calculating complex shapes. This approach, which integrates practical knowledge with Vitruvian graphic schemes, allows us to clarify the work of the ancient architect and consequently to investigate the architectural problem within the more general framework of archaeology with new conceptual tools.

Chinese aid and country image: Average and heterogeneous patterns

In this paper, we provide novel evidence on the effects of Chinese aid on China's country image. Our analysis exploits data on Chinese aid projects and local perceptions of China from 2002 to 2015 with a staggered difference-in-differences empirical strategy. We find that, on average, the Chinese aid has no significant effect on China's country image. More importantly. we further classify Chinese aid into five sectors and establish significant heterogeneous patterns: Chinese aid in the education and health sector has a positive and significant effect on local perceptions of China, while aid in the infrastructure sector yields a negative effect. Further investigations provide suggestive evidence that the economic development and local employment may be main channels. Finally, we highlight the vital role of bilateral political relations and substantial heterogeneity regarding geographical regions of recipient countries.