Chalcopyrite,copper indium gallium selenide(Cu(In,Ga)Se_(2),CIGS),as semiconductor materials,have been widely used as absorbers in thin-film solar cells,offering high power conversion efficiency(PCE)and good thermal s...Chalcopyrite,copper indium gallium selenide(Cu(In,Ga)Se_(2),CIGS),as semiconductor materials,have been widely used as absorbers in thin-film solar cells,offering high power conversion efficiency(PCE)and good thermal stability[1−3].Recently,the development of non-traditional photovoltaic(PV)devices such as semitransparent.展开更多
As prior researchers have suggested,a firm’s success in an international market depends on how well its strategy fits the nonmarket environment,such as formal institutions.This paper examines the determinants of form...As prior researchers have suggested,a firm’s success in an international market depends on how well its strategy fits the nonmarket environment,such as formal institutions.This paper examines the determinants of formal institutions around new areas of economic activities.Specifically,we propose a framework for understanding how the quality of formal institutions in promoting entrepreneurship drives the focus of such institutions concerning initial coin offering(ICO),which is emerging as a popular fundraising method.The paper uses inductive analysis to examine how nonmarket factors—such as a jurisdiction’s tax haven nature,regulators’perceptions of ICOs as threats to national or political interests,and trade and industry associations—might moderate the relationship between the quality of institutions and the focus of such institutions regarding ICOs.One of this study’s key findings is that an economy’s quality of entrepreneurship-related institutions,perceived threats to national/political interests,and tax haven nature lead to different policy orientations.Consequently,regulators assign different importance when promoting crypto-entrepreneurship and dealing with associated risks.Regulators focusing mainly on promoting crypto-ventures have taken measures to enrich the blockchain ecosystem and provided tax and non-tax incentives to attract such ventures.Regulators focusing mainly on dealing with crypto-venture risks rely on a regulatory sandbox and close regulatory monitoring of such ventures.展开更多
Nowadays, in data science, supervised learning algorithms are frequently used to perform text classification. However, African textual data, in general, have been studied very little using these methods. This article ...Nowadays, in data science, supervised learning algorithms are frequently used to perform text classification. However, African textual data, in general, have been studied very little using these methods. This article notes the particularity of the data and measures the level of precision of predictions of naive Bayes algorithms, decision tree, and SVM (Support Vector Machine) on a corpus of computer jobs taken on the internet. This is due to the data imbalance problem in machine learning. However, this problem essentially focuses on the distribution of the number of documents in each class or subclass. Here, we delve deeper into the problem to the word count distribution in a set of documents. The results are compared with those obtained on a set of French IT offers. It appears that the precision of the classification varies between 88% and 90% for French offers against 67%, at most, for Cameroonian offers. The contribution of this study is twofold. Indeed, it clearly shows that, in a similar job category, job offers on the internet in Cameroon are more unstructured compared to those available in France, for example. Moreover, it makes it possible to emit a strong hypothesis according to which sets of texts having a symmetrical distribution of the number of words obtain better results with supervised learning algorithms.展开更多
CT:What are the positive effects of the lifting restrictions on international flights on this exhibition?Charles Beauduin:As our exhibitors and visitors come from more than 100 countries,the lifting of travel restrict...CT:What are the positive effects of the lifting restrictions on international flights on this exhibition?Charles Beauduin:As our exhibitors and visitors come from more than 100 countries,the lifting of travel restrictions by governments around the world is good news.International airlines are adding more flights and this helps make it easier for participants to travel to our exhibition in Milan.展开更多
English business correspondence plays an important role in business activities. People take it for granted that it should be cautious and accurate,but neglect the necessity and importance of vague language. Therefore,...English business correspondence plays an important role in business activities. People take it for granted that it should be cautious and accurate,but neglect the necessity and importance of vague language. Therefore, it is very important to apply vague language to English business correspondence.展开更多
ACCA (The Association of Chartered Certified Accountants), as one of the most famous professional organizations for accountants, has long placed great importance on the cultivation of international accountants with co...ACCA (The Association of Chartered Certified Accountants), as one of the most famous professional organizations for accountants, has long placed great importance on the cultivation of international accountants with colleges. Up to the present, more than forty universities all over the country have ACCA-oriented course offering. This study aims at embedding ACCA course into the curriculum system of Business English Majors. The new course offering would apply a bilingual teaching approach. This study would be beneficial to the construction of our English department and pave a brand new way of breeding international accountants.展开更多
This study investigates the earnings performance of 418 initial public offerings （IPOs） listed on the stock exchange of Hong Kong. By analyzing several profitability measures of these 1PO companies from the third ye...This study investigates the earnings performance of 418 initial public offerings （IPOs） listed on the stock exchange of Hong Kong. By analyzing several profitability measures of these 1PO companies from the third year prior to listing up to the fifth year post-listing, it is found that IPO companies＇ operating performances as a whole peak in the year of listing or the year preceding the listing, but exhibit a fall in post-issue profitability with the decline being most pronounced in the first financial year following the year in which the listing take place. Over 30% of these IPOs suffer a loss three years after the offerings. Deterioration of post-issue performance is found to be more severe for smaller finns, highly-geared companies, fast-growing enterprises, companies with lower ownership retention by original shareholders, and companies which have managed earnings upwards at the time of listing. These observations are consistent with the higher agency costs when firms go public and that managers have timed the issue at the peak of the companies＇ long-run performance. Further investigation confirms that IPO companies in general make use of income-increasing accruals to manage their earnings upwards in the year when they go public. The reversal of the accruals in post-issue years further exaggerates the decline in their profitability.展开更多
基金This work is supported by the National Natural Science Foundation of China(22075150)the National Key Research and Development Program of China(2019YFE0118100)+2 种基金L.Ding thanks the National Key Research and Development Program of China(2022YFB3803300)the open research fund of Songshan Lake Materials Laboratory(2021SLABFK02)the National Natural Science Foundation of China(21961160720).
文摘Chalcopyrite,copper indium gallium selenide(Cu(In,Ga)Se_(2),CIGS),as semiconductor materials,have been widely used as absorbers in thin-film solar cells,offering high power conversion efficiency(PCE)and good thermal stability[1−3].Recently,the development of non-traditional photovoltaic(PV)devices such as semitransparent.
文摘As prior researchers have suggested,a firm’s success in an international market depends on how well its strategy fits the nonmarket environment,such as formal institutions.This paper examines the determinants of formal institutions around new areas of economic activities.Specifically,we propose a framework for understanding how the quality of formal institutions in promoting entrepreneurship drives the focus of such institutions concerning initial coin offering(ICO),which is emerging as a popular fundraising method.The paper uses inductive analysis to examine how nonmarket factors—such as a jurisdiction’s tax haven nature,regulators’perceptions of ICOs as threats to national or political interests,and trade and industry associations—might moderate the relationship between the quality of institutions and the focus of such institutions regarding ICOs.One of this study’s key findings is that an economy’s quality of entrepreneurship-related institutions,perceived threats to national/political interests,and tax haven nature lead to different policy orientations.Consequently,regulators assign different importance when promoting crypto-entrepreneurship and dealing with associated risks.Regulators focusing mainly on promoting crypto-ventures have taken measures to enrich the blockchain ecosystem and provided tax and non-tax incentives to attract such ventures.Regulators focusing mainly on dealing with crypto-venture risks rely on a regulatory sandbox and close regulatory monitoring of such ventures.
文摘Nowadays, in data science, supervised learning algorithms are frequently used to perform text classification. However, African textual data, in general, have been studied very little using these methods. This article notes the particularity of the data and measures the level of precision of predictions of naive Bayes algorithms, decision tree, and SVM (Support Vector Machine) on a corpus of computer jobs taken on the internet. This is due to the data imbalance problem in machine learning. However, this problem essentially focuses on the distribution of the number of documents in each class or subclass. Here, we delve deeper into the problem to the word count distribution in a set of documents. The results are compared with those obtained on a set of French IT offers. It appears that the precision of the classification varies between 88% and 90% for French offers against 67%, at most, for Cameroonian offers. The contribution of this study is twofold. Indeed, it clearly shows that, in a similar job category, job offers on the internet in Cameroon are more unstructured compared to those available in France, for example. Moreover, it makes it possible to emit a strong hypothesis according to which sets of texts having a symmetrical distribution of the number of words obtain better results with supervised learning algorithms.
文摘CT:What are the positive effects of the lifting restrictions on international flights on this exhibition?Charles Beauduin:As our exhibitors and visitors come from more than 100 countries,the lifting of travel restrictions by governments around the world is good news.International airlines are adding more flights and this helps make it easier for participants to travel to our exhibition in Milan.
文摘English business correspondence plays an important role in business activities. People take it for granted that it should be cautious and accurate,but neglect the necessity and importance of vague language. Therefore, it is very important to apply vague language to English business correspondence.
文摘ACCA (The Association of Chartered Certified Accountants), as one of the most famous professional organizations for accountants, has long placed great importance on the cultivation of international accountants with colleges. Up to the present, more than forty universities all over the country have ACCA-oriented course offering. This study aims at embedding ACCA course into the curriculum system of Business English Majors. The new course offering would apply a bilingual teaching approach. This study would be beneficial to the construction of our English department and pave a brand new way of breeding international accountants.
文摘This study investigates the earnings performance of 418 initial public offerings （IPOs） listed on the stock exchange of Hong Kong. By analyzing several profitability measures of these 1PO companies from the third year prior to listing up to the fifth year post-listing, it is found that IPO companies＇ operating performances as a whole peak in the year of listing or the year preceding the listing, but exhibit a fall in post-issue profitability with the decline being most pronounced in the first financial year following the year in which the listing take place. Over 30% of these IPOs suffer a loss three years after the offerings. Deterioration of post-issue performance is found to be more severe for smaller finns, highly-geared companies, fast-growing enterprises, companies with lower ownership retention by original shareholders, and companies which have managed earnings upwards at the time of listing. These observations are consistent with the higher agency costs when firms go public and that managers have timed the issue at the peak of the companies＇ long-run performance. Further investigation confirms that IPO companies in general make use of income-increasing accruals to manage their earnings upwards in the year when they go public. The reversal of the accruals in post-issue years further exaggerates the decline in their profitability.
