Search results

1 – 10 of over 3000
Book part
Publication date: 1 September 2021

Feng Yang, Zhen Bi, Fangqing Wei and Zhimin Huang

In China, more than 80,000 people have been diagnosed with COVID-19, and more than 3,000 people have lost their lives. It seems that there will be more deaths since the epidemic…

Abstract

In China, more than 80,000 people have been diagnosed with COVID-19, and more than 3,000 people have lost their lives. It seems that there will be more deaths since the epidemic is not over. All the Chinese provinces have reported the COVID-19 cases. This chapter aims to explore the trend of COVID-19 treatment efficiency in Chinese provinces using the data released daily by China Center for Disease Control and Prevention. Since China Center for Disease Control and Prevention began to release data daily from January 24 to March 12, we have more than 40 groups of daily data for 31 provinces in China mainland. In the calculation, we take the daily data of each province as a sample and then we have more than 1,200 samples in this study.

We use additive two-stage data envelopment analysis as an efficiency evaluation tool to calculate the COVID-19 treatment efficiency. In our framework, the first stage is to understand the infection rate and the second stage is to evaluate the treatment efficiency. In the first stage for the tth day, we use total population (p) and number of people infected in the previous day (inf t−1) as the inputs and cumulative number of people infected in the current day (inf t ) as the output. In the second stage for the tth day, we use cumulative number of people infected in the current day (inf t ) as the input and cumulative death in the current day (death t ) and cumulative recovery in the current day (recov t ) as the outputs. Some techniques on how to deal with undesirable outputs such as inf t and death t are employed in this study.

After we have the infection rate and treatment efficiency for the samples more than 1,200, we analyze the COVID-19 treatment efficiency and its development trend from January 24 to March 12 in 34 regions of China from static and dynamic aspects. The results show that, on the whole, the overall efficiency and phased efficiency of COVID-19 treatment efficiency in all regions of China are relatively high, which reflects the key factor for the Chinese government to quickly control the epidemic in the short term. Relatively speaking, the average efficiency value in the infection stage (first stage) is lower than the average efficiency value in the healing stage (second stage), which shows that the focus of anti-epidemic in China should be early detection and prevention rather than treatment process. In terms of trend, the total efficiency of COVID-19 treatment in each region shows a trend of “increasing first and then decreasing.” Our analysis indicates that in the initial stage, the continuous increase of various resources leads to the rise of the total efficiency, while in the later stage, the rapid decline of the number of infected people leads to the decrease of the total efficiency. Based on the results of the efficiency analysis, this study provides corresponding management implications and policy suggestions, hoping to provide some enlightenment and suggestions for the anti-epidemic work of other countries in the severe environment where the epidemic is spreading rapidly.

Details

Advances in Business and Management Forecasting
Type: Book
ISBN: 978-1-83982-091-5

Keywords

Article
Publication date: 14 July 2021

Veerraju Gampala, Praful Vijay Nandankar, M. Kathiravan, S. Karunakaran, Arun Reddy Nalla and Ranjith Reddy Gaddam

The purpose of this paper is to analyze and build a deep learning model that can furnish statistics of COVID-19 and is able to forecast pandemic outbreak using Kaggle open…

Abstract

Purpose

The purpose of this paper is to analyze and build a deep learning model that can furnish statistics of COVID-19 and is able to forecast pandemic outbreak using Kaggle open research COVID-19 data set. As COVID-19 has an up-to-date data collection from the government, deep learning techniques can be used to predict future outbreak of coronavirus. The existing long short-term memory (LSTM) model is fine-tuned to forecast the outbreak of COVID-19 with better accuracy, and an empirical data exploration with advanced picturing has been made to comprehend the outbreak of coronavirus.

Design/methodology/approach

This research work presents a fine-tuned LSTM deep learning model using three hidden layers, 200 LSTM unit cells, one activation function ReLu, Adam optimizer, loss function is mean square error, the number of epochs 200 and finally one dense layer to predict one value each time.

Findings

LSTM is found to be more effective in forecasting future predictions. Hence, fine-tuned LSTM model predicts accurate results when applied to COVID-19 data set.

Originality/value

The fine-tuned LSTM model is developed and tested for the first time on COVID-19 data set to forecast outbreak of pandemic according to the authors’ knowledge.

Details

World Journal of Engineering, vol. 19 no. 4
Type: Research Article
ISSN: 1708-5284

Keywords

Article
Publication date: 5 July 2022

Shannon I.L. Sidaway, Daniela Juric and Craig Deegan

The purpose of this paper is to demonstrate how teaching broader accounting concepts through real life non-financial case study information (such as COVID-19 case reporting) can…

Abstract

Purpose

The purpose of this paper is to demonstrate how teaching broader accounting concepts through real life non-financial case study information (such as COVID-19 case reporting) can assist students understanding accounting’s technical, social and moral perspectives. Accounting education and practice has traditionally focussed on the technical aspects of accounting and has situated accounting within a financial context.

Design/methodology/approach

This exploratory study uses content analysis of COVID-19 case and death numbers reported by several international health reporting agencies. This study does not set out to provide a detailed technical or comparative jurisdictional analysis of the decision-usefulness of COVID-19 information. Rather, this study looks at the “decision-usefulness” of the COVID-19 case and death number information, and provides examples that educators can draw upon for inspiration when showing how the qualitative characteristics of decision-useful information can be applied to non-financial information. This study also highlights, by use of a “novel data set”, the technical, social and moral aspects of accounting.

Findings

This study finds that the COVID-19 pandemic provides an opportunity for accounting education by positioning the qualitative characteristics of decision-useful information beyond a financial context. The exploration of accounting within this setting effectively demonstrates that accounting has “technical”, “social” and “moral” dimensions.

Originality/value

This paper fulfils an identified need to include teaching of decision-usefulness of non-financial information in the accounting curriculum to ensure that future professional accountants possess technical and professional competency skills.

Article
Publication date: 6 June 2022

Emna Mnif, Bassem Salhi, Khaireddine Mouakha and Anis Jarboui

Cryptocurrencies lack fundamental values and are often subject to behavioral bias leading to market bubbles. This study aims to investigate the contribution of the coronavirus…

Abstract

Purpose

Cryptocurrencies lack fundamental values and are often subject to behavioral bias leading to market bubbles. This study aims to investigate the contribution of the coronavirus pandemic to the creation of market bubbles.

Design/methodology/approach

This study identifies four major cryptocurrency market bubbles by using the Phillips et al. (2016) (hereafter PSY) test. Subsequently, the co-movements of the coronavirus proxies with PSY measurement using the wavelet approach were studied.

Findings

Short-lived bubbles are detected at the beginning of the studied period, and more extended bubble periods are identified at the end. Besides, the empirical results show evidence of significant negative co-movement between each pandemic proxy and each cryptocurrency bubble measurement.

Research limitations/implications

Given the complex financial dynamics of the cryptocurrency markets due to some behavioral biases in some circumstances, investors can benefit from the date stamping of the bubbles bursting to make the best trading positions. In the same way, governments could support the healthy development of cryptocurrencies by preventing bubbles during such pandemics.

Originality/value

The financial bubble is commonly attributed to a change in investor behavior. Because traders and investors think they can resell the asset at a higher price in the future. This study explored the contribution of the COVID-19 pandemic in the creation of these bubbles by date stamping their occurrence and explosive periods. To the best of the authors’ knowledge, this study is the first attempt that explores the contribution of the COVID-19 pandemic to the creation of bubbles caused by a change in the investors’ behavior.

Details

Review of Behavioral Finance, vol. 14 no. 4
Type: Research Article
ISSN: 1940-5979

Keywords

Book part
Publication date: 31 August 2001

Irina Farquhar, Alan Sorkin, Kent Summers and Earl Weir

We study changes in age-specific diabetes-related mortality and annual health care utilization. We find that half of the estimated 16% increase of diabetic mortality falls within…

Abstract

We study changes in age-specific diabetes-related mortality and annual health care utilization. We find that half of the estimated 16% increase of diabetic mortality falls within employable age groups. We estimate that disease combination-specific increase in case fatality has resulted in premature diabetic mortality costing $3.2 billion annually. The estimated annual direct cost of treating high-risk diabetics reaches $36 billion, of which Medicare and Other Federal Programs compensate 54%. Respiratory conditions among diabetics comprise the same proportion of high-risk diabetics as do the disease combinations including coronary heart diseases. Treating of general diabetic conditions has become more efficient as indicated by the estimated declines in per unit health care costs.

Details

Investing in Health: The Social and Economic Benefits of Health Care Innovation
Type: Book
ISBN: 978-1-84950-070-8

Article
Publication date: 29 April 2022

Hanan AbdelKhalik Abouelfarag and Rasha Qutb

The purpose of this study is to empirically examine the impact of the novel coronavirus (COVID-19) on Egyptian stock market returns and volatility between July 2018 and June 2021.

Abstract

Purpose

The purpose of this study is to empirically examine the impact of the novel coronavirus (COVID-19) on Egyptian stock market returns and volatility between July 2018 and June 2021.

Design/methodology/approach

This study utilizes a generalized autoregressive conditional heteroskedasticity (GARCH) model to examine the impact of COVID-19 on two basic stock market indices (EGX30 and EGX100). In addition, the heteroskedasticity corrected model (HCM) was employed to differentiate between the effects of each subsequent wave of the pandemic.

Findings

The results of the GARCH model revealed that all COVID-19 variables have a significant impact on the daily returns of EGX100, but an insignificant impact on that of EGX30. The mortality rate and transmission speed increased the market volatility of EGX30 daily returns. The results of the HCM confirmed that the Egyptian stock market reacted more nervously to the first wave than to the second, while the impact was not detected in the third wave.

Practical implications

This study provides useful insights to investors and policymakers in handling the negative influence of unanticipated events. To retain economic stability, the Egyptian government can impose fiscal stimuli and consider policies to combat the impact of the pandemic.

Originality/value

This study is one of the first attempts to differentiate between the effects of subsequent waves of the pandemic on the stock market in Egypt, one of the largest economies in Africa.

Details

African Journal of Economic and Management Studies, vol. 13 no. 2
Type: Research Article
ISSN: 2040-0705

Keywords

Book part
Publication date: 28 September 2023

M Anand Shankar Raja, Keerthana Shekar, B Harshith and Purvi Rastogi

The COVID-19 pandemic has recently had an impact on the stock market all over the globe. A thorough review of the literature that included the most cited articles and articles…

Abstract

The COVID-19 pandemic has recently had an impact on the stock market all over the globe. A thorough review of the literature that included the most cited articles and articles from well-known databases revealed that earlier research in the field had not specifically addressed how the BRIC stock markets responded to the COVID-19 pandemic. The data regarding COVID-19 were collected from the World Health Organization (WHO) website, and the stock market data were collected from Yahoo Finance and the respective country’s stock exchange. A random forest regression algorithm takes the closing price of respective stock indices as target variables and COVID-19 variables as input variables. Using this algorithm, a model is fit to the data and is visualised using line plots. This study’s findings highlight a relationship between the COVID-19 variables and stock market indices. In addition, the stock market of BRIC countries showed a high correlation, especially with the Shanghai Composite Stock Index with a correlation value of 0.7 and above. Brazil took the worst hit in the studied duration by declining approximately 45.99%, followed by India by 37.76%. Finally, the data set’s model fit, which employed the random forest machine learning method, produced R2 values of 0.972, 0.005, 0.997, and 0.983 and mean percentage errors of 1.4, 0.8, 0.9, and 0.8 for Brazil, Russia, India, and China (BRIC), respectively. Even now, two years after the coronavirus pandemic started, the Brazilian stock index has not yet returned to its pre-pandemic level.

Details

Digital Transformation, Strategic Resilience, Cyber Security and Risk Management
Type: Book
ISBN: 978-1-83797-009-4

Keywords

Book part
Publication date: 14 July 2004

Kalman Rupp and Paul S Davies

Using data from the Survey of Income and Program Participation (SIPP) matched to administrative records, we examine mortality risk and participation in the Disability Insurance…

Abstract

Using data from the Survey of Income and Program Participation (SIPP) matched to administrative records, we examine mortality risk and participation in the Disability Insurance (DI) and Supplemental Security Income (SSI) disability programs from a long-term perspective. Over a period of 14 years, we analyze the effect of self-reported health and disability on the probability of death and disability program entry among individuals aged 18–48 in 1984. We also assess DI and SSI programs from a life-cycle perspective. Self-reported poor health and severe disability at baseline are strongly correlated with death over the 14-year follow-up period. These variables also are strong predictors of disability program participation over the follow-up period among non-participants at baseline or before, with increasing marginal probabilities in the out-years. Our cross-sectional models are consistent with recent studies that find that the work-prevented measure is useful in modeling DI entry. However, once self-reported health and functional limitations are accounted for, the longitudinal entry models provide conflicting DI results for the work-prevented measure, suggesting that, contrary to claims based on cross-sectional or short-time horizon application models, the work-prevented measure is an unreliable indicator of severity. The risk of SSI and DI participation is significantly greater for individuals who die, suggesting that future mortality captures the effect of case severity and deterioration of health during the follow-up period. From a life-cycle perspective, a substantially greater proportion of individuals participate in SSI or DI at some point in their lives compared to typical cross-sectional estimates of participation, especially among minorities, people with less than a high school education, and those with early onset of poor health and/or disabilities. Cross-sectional estimates for the Social Security area population indicate SSI and DI participation rates of no more than 5% combined in 2000. In contrast, for individuals aged 43–48 in 1984, we observe a cumulative lifetime SSI and/or DI participation rate of 14%. The corresponding figure is 32% for individuals in that age group who did not graduate from high school, suggesting the need for human capital investments and/or improved work incentives.

Details

Accounting for Worker Well-Being
Type: Book
ISBN: 978-1-84950-273-3

Book part
Publication date: 25 January 2023

Xingyuan Yao

This chapter investigates the impact of the COVID-19 pandemic on economic stimulus policies. Based on data from 156 economies, empirical results show that in the medium term…

Abstract

This chapter investigates the impact of the COVID-19 pandemic on economic stimulus policies. Based on data from 156 economies, empirical results show that in the medium term, cumulative effect of COVID-19 pandemic is positively correlated with the economic stimulus policies but not in the short term. Heterogeneity tests show that while economic policies are used in developed economies more often, restrictive measures in developing countries are likely used as a substitution; deaths have a positive impact on economic stimulus policies but confirmed cases not. The results suggest that the pandemic may reinforce economic inequality due to potential stimulus policy capabilities, requiring international coordination and assistance to low-and-middle income countries in various aspects.

Article
Publication date: 22 September 2020

Kalyanaram Gurumurthy and Avinandan Mukherjee

The novel coronavirus disease 2019 (COVID-19) pandemic has presented unique challenges in terms of understanding its unique characteristics of transmission and predicting its…

Abstract

Purpose

The novel coronavirus disease 2019 (COVID-19) pandemic has presented unique challenges in terms of understanding its unique characteristics of transmission and predicting its spread. The purpose of this study is to present a simple, parsimonious and accurate model for forecasting mortality caused by COVID-19.

Design/methodology/approach

The presented Bass Model is compared it with several alternative existing models for forecasting the spread of COVID-19. This study calibrates the model for deaths for the period, March 21 to April 30 for the USA as a whole and as the US States of New York, California and West Virginia. The daily data from the COVID-19 Tracking Project has been used, which is a volunteer organization launched from The Atlantic. Every day, data is collected on testing and patient outcomes from all the 50 states, 5 territories and the District of Columbia. This data set is widely used by policymakers and scholars. The fit of the model (F-value and its significance, R-squared value) and the statistical significance of the variables (t-values) for each one of the four estimates are examined. This study also examines the forecast of deaths for a three-day period, May 1 to 3 for each one of the four estimates – US, and States of New York, California and West Virginia. Based on these metrics, the viability of the Bass Model is assessed. The dependent variable is the number of deaths, and the two independent variables are cumulative number of deaths and its squared value.

Findings

The findings of this paper show that compared to other forecasting methods, the Bass Model performs remarkably well. In fact, it may even be argued that the Bass Model does better with its forecast. The calibration of models for deaths in the USA, and States of New York, California and West Virginia are all found to be significant. The F values are large and the significance of the F values is low, that is, the probability that the model is wrong is very miniscule. The fit as measured by R-squared is also robust. Further, each of the two independent variables is highly significant in each of the four model calibrations. These forecasts also approximate the actual numbers reasonably well.

Research limitations/implications

This study illustrates the applicability of the Bass Model to estimate the diffusion of COVID-19 with some preliminary but important empirical analyses. This study argues that while the more sophisticated models may produce slightly better estimates, the Bass model produces robust and reasonably accurate estimates given the extreme parsimony of the model. Future research may investigate applications of the Bass Model for pandemic management using additional variables and other theoretical lenses.

Practical implications

The Bass Model offers effective forecasting of mortality resulting from COVID-19 to help understand how the curve can be flattened, how hospital capacity could be overwhelmed and how fatality rates might climb based on time and geography in the upcoming weeks and months.

Originality/value

This paper demonstrates the efficacy of the Bass Model as a parsimonious, accessible and theory-based approach that can predict the mortality rates of COVID-19 with minimal data requirements, simple calibration and accessible decision calculus. For all these reasons, this paper recommends further and continued examination of the Bass Model as an instrument for forecasting COVID-19 (and other epidemic/pandemic) mortality and health resource requirements. As this paper has demonstrated, there is much promise in this model.

Details

International Journal of Pharmaceutical and Healthcare Marketing, vol. 14 no. 3
Type: Research Article
ISSN: 1750-6123

Keywords

1 – 10 of over 3000