共查询到20条相似文献,搜索用时 15 毫秒
1.
《Telecommunications Policy》2022,46(2):102246
Surprisingly, little is known about the cross-country effect of information and communication technology (ICT) on wealth inequality. At the same time, there is some tentative evidence suggesting that information and communication technology is positively correlated with income inequality. However, whether and how ICT affects wealth inequality is less explored, particularly because of the lack of reliable data on wealth inequality. This paper, therefore, fills this gap and contributes to this new literature by investigating the effect of ICT on wealth inequality in a sample of 45 developed and developing countries over the period 2000–2017. ICT is measured with six different indicators (including internet penetration, mobile penetration, ICT service exports, the ICT index, ICT quality, and ICT quantity), while wealth inequality is measured with three different indicators (comprising billionaire wealth to GDP, the Top 1% wealth share, and the Top 10% wealth share). The empirical analysis is based on the Generalised Method of Moments, and the results show that ICT increases wealth inequality. Furthermore, we show that democracy mitigates the increasing effect of ICT on wealth inequality. This result suggests that improving democracy in both developed and developing countries is an effective mechanism for mitigating the effects of ICT on wealth inequality. Therefore, we encourage efforts to implement democratic institutions that ensure respect for citizens' freedoms, greater democratic accountability, and executive constraints that allow for a more egalitarian distribution of wealth. 相似文献
2.
《Telecommunications Policy》2017,41(2):106-119
We analyze the effect of ICT and R&D on total factor productivity (TFP) growth across different industries in Sweden. R&D alone is significantly associated with contemporaneous TFP growth, thus exhibiting indirect effects. Although there is no significant short-run association between ICT and TFP, we find a positive association with a lag of seven to eight years. Thus, R&D affect TFP much faster than ICT-investments. We also divide ICT capital into hardware and software capital. To our knowledge, this distinction has not been made in any previous study analyzing TFP at the industry level. The results show that lagged hardware capital services growth is significantly associated with TFP growth. Hence, investments complementary to hardware are needed to reap the long-run TFP effects from reorganizing production. 相似文献
3.
《Telecommunications Policy》2020,44(9):102023
This research investigates the linear and non-linear effects of information and communication technology (ICT) diffusion on financial development for 81 countries over the period 1990–2015 by employing the generalized-momentum method (GMM) and panel smooth transition regression (PSTR). Some main conclusions are presented as follows. First, comparing the different effects of ICT on financial development between the high-income group and the middle- & low-income group, telephone and Internet positively influences both groups’ financial development, whereas mobile cellular causes a negative effect in high-income countries, but a positive effect in middle- & low-income countries. Second, the growth of the Internet and telephones raises the financial development in all regions, while mobile cellular growth positively affects financial development only in Africa. Finally, strong evidence appears that the PSTR models capture the smooth non-linear effects of ICT diffusion on financial development, in which the effect of ICT diffusion on financial development is positive in the lower level of ICT diffusion, but turns negative in the higher level of ICT diffusion. 相似文献
4.
The stock of mobile telephones has surpassed fixed phones in Korea. Presently, the density is more than 60 of every 100 inhabitants. Thus, the potential for mobile telephones to become a substitute for, and directly compete with fixed telephones, has become evident. The aim of this paper is to examine the impact of rapid growth in mobile telephones on the access demand for traditional fixed telephones. The study shows that a 1% increase in the number of mobile telephones results in a reduction of 0.10–0.18% in new fixed connections and a 0.14–0.22% increase in fixed disconnections. The empirical analysis is carried out with Korean regional panel data for the period 1991–1998. The study is relevant to several important public policy issues. 相似文献
5.
Ali Hortasu 《International Journal of Industrial Organization》2011,29(3):345-349
I discuss some recent progress in the empirical analysis of multi-unit auctions, through which a number of important commodities (Treasury bills and bonds, electricity, emission permits, monetary infusions by some central banks) are allocated. 相似文献
6.
《Food Policy》2020
Commercialisation by smallholder farmers has played a major role in agricultural development in many Asian countries, and while there are assumptions that this has led to welfare improvement, in fact there is relatively little evidence on this question. In this paper we use high quality panel data to examine the welfare impact of agricultural commercialisation in a leading Asian producer, Vietnam. We use the five-wave Vietnam Access to Resources Household Survey (VARHS) panel data set from 2008 to 16, three measures of household welfare and create commercialisation indexes in relation to all crops and to rice specifically. We find a significant positive relationship of commercialisation with household asset accumulation, but a negative association with consumption expenditure. 相似文献
7.
The use of information and communications technology (ICT) turned out to be a key factor in the process of the wider development of a country. It is therefore very useful to estimate ICT evolution by the means of an appropriate metric. Based on statistical data from 159 countries, the ICT maturity level index (IMLI) is proposed and estimated by using structural equation modelling (SEM). This index is a metric measuring the information society in a country and consists of three sub-indices which are access, use and skills. It is an improvement of the ICT development index, proposed by the ITU in 2009. The analysis divides the countries into two groups, the developed and the developing, due to major disparities in their statistical data. The criterion used to define the groups was the income, as expressed by the Gross National Income per capita. The impact of a number of influential parameters on the ICT maturity level is evaluated and it becomes obvious that there is a substantial difference in their impact between developed and developing countries. Finally, a procedure that allows the ranking of the countries, based on IMLI, is presented. 相似文献
8.
《Telecommunications Policy》2023,47(6):102568
Digitalization has emerged as a crucial factor in reducing pollution and holds significant potential for facilitating the transition to a low-carbon economy. Nevertheless, the environmental impact of digitalization hinges on the strategies for collaboration with various economic actors and, as a result, their engagement with digitalization. In light of this, the present study seeks to examine the externality effect of digitalization on green innovation, renewable energy, and financial development in relation to environmental sustainability. The analysis employs the System Generalized Method of Moments (SYS-GMM) for 36 OECD countries over the period of 2000–2018. The empirical findings indicate that digitalization, green innovation, renewable energy, and financial development substantially promote environmental sustainability. Moreover, the interaction between digitalization, green innovation, renewable energy utilization, and financial development enhances the ecological footprint-mitigating effect of digitalization. In view of these results, merging digitalization and environmental policies may yield more robust outcomes and improved environmental quality compared to implementing a single policy in isolation. 相似文献
9.
《Telecommunications Policy》2019,43(9):101828
Digital transformation is requiring companies to rethink and innovate their business models (BMs). However, small- and medium-sized enterprises (SMEs) have scarce time and resources for experimenting with their BMs and implementing new strategies. This paper examines whether SMEs that undergo digital transformation perform better if they allocate more resources for BM experimentation and engage more in strategy implementation. An empirical study was conducted on 321 European SMEs that actively use social media, big data, and information technology to innovate their BMs. Furthermore, structural equation modelling showed positive overall firm performance effects of more resource allocation to BM experimentation and more engagement in practices of strategy implementation. These effects were mediated by BM experimentation practices and company innovativeness. Moreover, fuzzy-set qualitative comparative analysis (fsQCA) revealed the presence of equifinality by identifying different configurations in which these antecedent conditions affect overall firm overall performance. The results of two methodological approaches showed that SMEs may take different routes to improve their performance when digital transformation is changing their BM. This paper is one of the first to analyse how SMEs can handle the impact of digitalization by spending more time and effort on innovating their BMs. Practical and policy implications are discussed. 相似文献
10.
《Food Policy》2017
We investigate the impact of maize-legume intercropping, soil and water conservation practices (SWC), organic fertilizers, inorganic fertilizers and high yielding maize varieties on maize productivity under weather shocks in Tanzania using panel data. First, we estimate the determinants of adoption by applying a multivariate panel data model capturing their complementarities and/or substitutabilities. Second, after testing for their potential endogeneity, we study the impact of these practices (and combinations of them) on maize productivity controlling for weather shocks. Finally, we disaggregate results by presence/absence of seasonal rainfall and temperature shocks to explore the heterogeneous impact of adoption under weather shocks. We find strong complementarities between agricultural practices both in terms of adoption and yield impacts. Long-run variability in rainfall decreases the adoption of organic fertilizers and increases that of improved seeds. Farmers in areas where the cropping season’s rainfall has been highly variable and temperature has been unexpectedly high have significantly lower maize yields. SWC emerges as one of the most important practices in increasing yields with significant benefits by itself, in combination with other practices, under average weather conditions as well as under rainfall and temperature shocks. Overall, increasing the adoption of SWC appears a promising policy option to buffer food security from increasingly frequent weather shocks in Tanzania. 相似文献
11.
《Food Policy》2017
Millions of smallholder farmers in developing countries participate in different types of sustainability standards. A growing body of literature has analyzed the welfare effects, with mixed results. Yet, there are important knowledge gaps. First, most existing studies have looked at the effects of one standard in one country. When comparing between studies it is unclear whether dissimilar outcomes are the result of different standards or different local conditions. Second, most studies have used cross-section data, so that selectivity issues remain a challenge. Third, existing work has primarily analyzed effects in terms of purely economic indicators, such as prices and income, ignoring other dimensions of household welfare. We address these shortcomings using panel data from small-scale coffee producers in Uganda and comparing the effects of two of the most popular sustainability standards, namely Organic and Fairtrade. Welfare effects are analyzed in terms of household expenditures, child education, and nutrition. Results show that Organic and Fairtrade both have positive effects on total consumption expenditures. However, notable differences are observed in terms of the other outcomes. Organic contributes to improved nutrition but has no effect on education. For Fairtrade it is exactly the other way around. We explore the mechanisms behind these differences. 相似文献
12.
Rural ICT centers are the initiative of the third millennium and widen the accessibility horizons of information and Communication Technology among disadvantaged groups of societies, and play a significant role in rural development processes. Adoption of new technology in rural Iran has been the main challenge and focal point of all agricultural extension activities since the modernization era of the 1950s. Consequently the rapidly growing gap between urban and rural economy has reinforced the critical role of ICT in creating an equal society. Identifying the factors which foster adoption of ICT is among the important challenges of alleviating digital divide. ICT centers attract different groups within rural communities and create a forum for unprivileged rural settlers to learn about and to use computer and internet. This paper attempts to identify the factors influencing the adoption of ICT in rural Gharn Abad's ICT center of Golestan Province. The sample included 218 individuals, who were selected by stratified random sampling method. Survey method was used, and data was analyzed by correlation as well as multiple regression techniques. Based on the results, the existence of ICT center itself, with various funding sources, reinforced the adoption regardless of the users' economic status. At the same time, the other factors such as individual, social, the households' informative & communicative, as well as the innovation related factors were found influential. This case study could be used as a sample for planning, establishing, and developing the ICT centers in the other similar situations. 相似文献
13.
The paper examines how hospital cost efficiency has reacted to extensive horizontal integrations of hospitals and rapid growth of managed care in the US health care industry. Cost efficiency is estimated by using panel data approaches to relax the assumptions for the hospital effects imposed in earlier studies. The paper shows that higher managed care penetration over time is associated with greater hospital efficiency, and higher market concentration is positively associated with efficiency when markets are highly competitive or highly concentrated. 相似文献
14.
《Telecommunications Policy》2023,47(2):102464
This paper aims to examine the convergence of ICT development in the case of 27 emerging market economies (EMEs) using annual data from 2000 to 2018. First, by employing Phillips-Sul (PS) panel convergence test, the results not only support the evidence of convergence in ICT development but also find convergence in the composition of ICT development known as ICT access and ICT use. Second, the study identifies factors such as per capita income, human capital, and FDI which significantly affect ICT development. Third, results based on stochastic conditional convergence reveal that EMEs countries are not only converging among themselves but also ‘catch-up’ to the OECD countries. 相似文献
15.
16.
An empirical analysis of inventory turnover behaviour in Greek retail sector: 2000-2005 总被引:1,自引:0,他引:1
Georgios D. Kolias Sophia P. Dimelis 《International Journal of Production Economics》2011,133(1):143-153
In this study we investigate the determinants of inventory turnover. The study is based on an econometric analysis of inventory behaviour using an inventory turnover model. The empirical implementation of the model was conducted on a sample of financial data for 566 Greek retail firms for the period 2000-2005. By employing panel data techniques it was found that inventory turnover ratio is negatively correlated with gross margin and positively correlated with capital intensity and a measure of sales surprise.Decomposing the variance into its components associated with year, firm and retail segment effects, we found that a substantial amount of inventory turns variability is due to segment-wise effects. Moreover, the inventory turnover reaction to different sales changes was also studied. It was estimated that changes in sales bring on bigger changes when firms operate in sales-declined region. These results are useful in identifying methods and applications to improve inventory performance among firms and over time. 相似文献
17.
《Telecommunications Policy》2020,44(1):101826
This paper analyses the incidence of broadband on regional productivity in Brazil, intending to find out if the economic impact is uniform across all territories of the country. The possibility of performing a regional approach to test the effect of broadband on productivity in an emerging country represents a novelty for the literature. Results suggest that the impact of broadband on productivity is positive although not uniform across regions. On the one hand, it seems to depend on connection quality and network effects. Faster download speed and critical-mass accounting for network externalities in the region enhance the economic impact of broadband. On the other hand, higher productivity gains are estimated for the less developed regions. The fact that the less productive regions in Brazil seem to be benefiting more from broadband may suggest that it can constitute a factor favoring regional convergence in the country. 相似文献
18.
《Food Policy》2019
Using three waves (2008/09, 2010/11, 2012/13) of the Tanzanian National Panel Survey, this study investigates the impact of maize price shocks on household food security. Between 2008/09 and 2012/13, calorie intake stagnated for urban households, yet sharply deteriorated for rural households. The latter was driven by a significant decline in the consumption of the major staple maize which showed strongest price hikes among all major food items. Fixed-effects regressions indicate a clear negative relationship between maize prices and average household energy intake. Almost all population groups were found to be negatively affected by maize price shocks, with rural landless households being the most vulnerable group. In particular, a 50 percent rise in maize prices decreases caloric intake for rural (urban) households on average by 4.4 (5.4) percent, and for rural landless households by 12.6 percent. Results further indicate that subsistence agriculture can act as an effective strategy to insure against food price volatility. 相似文献
19.
20.
This article provides an analysis of the implications of the growth of nanotechnology in the agriculture and food sector in OECD countries. Three main policy challenges are identified related to funding and investment, risk governance, and public acceptance. Each of these interconnected challenges underlines a number of ethical questions that need to be addressed. Several recommendations are laid out to move forward and adapt to these emerging policy issues. 相似文献