scholarly journals Technological relatedness: How do firms diversify their technology?

2021 ◽  
Author(s):  
Seung Hwan Kim ◽  
Bogang Jun ◽  
Jeong-Dong Lee
Keyword(s):  
United States ◽  
Propensity Score ◽  
New Technologies ◽  
New Technology ◽  
The United States ◽  
Patent Data ◽  
Economic Activities ◽  
Return Behavior ◽  
Technological Diversification ◽  
Unique Dataset

The principle of relatedness, which helps estimate the affinity between economic activities, suggests that cities, regions, and countries are more likely to undertake new economic activities when they already perform related activities. This empirical principle has been confirmed for various dimensions---cities, regions, and countries---and their activities--- developing new technologies, products, and industries. However, the technological diversification of firms is yet unexplored. Is a firm more successful at entering a new technology when it has already accumulated related technologies? Here, we explore this issue using a unique dataset that contains firms' patent data and financial and market information. In particular, we examine Korean firms listed in the Korean stock market that published patents at the patent offices in Korea, Europe, and the United States from 1984 to 2004. We develop a technological relatedness measure to estimate whether a firm has already published patents with similar technologies. We find that firms are more likely to develop a new technology when they already have related technologies. Interestingly, technological relatedness shows an increasing return to related knowledge. We also check the robustness of this effect using propensity score matching and find that the effects of technological relatedness and its increasing return behavior remain significant when controlling for potential confounding effects. These findings extend the concept of relatedness to a firm's technological diversification and show that the development of a firm's technological knowledge is shaped by its technological relatedness.

Epidemiology of Technology Use and Mental Health in the United States

2020 ◽  
pp. 41-56
Author(s):  
Seth W. Whiting ◽  
Rani A. Hoff
Keyword(s):  
Mental Health ◽  
United States ◽  
Technology Use ◽  
New Technologies ◽  
Role Playing ◽  
The United States ◽  
Mass Scale ◽  
Online Gambling ◽  
Health Issues ◽  
Mental Health Issues

Advancements in technologies and their mass-scale adoption throughout the United States create rapid changes in how people interact with the environment and each other and how they live and work. As technologies become commonplace in society through increased availability and affordability, several problems may emerge, including disparate use among groups, which creates divides in attainment of the beneficial aspects of a technology’s use and coinciding mental health issues. This chapter briefly overviews new technologies and associated emerging applications in information communication technologies, social media networks, video games and massively multiplayer online role-playing games, and online gambling, then examines the prevalence of use among the general population and its subgroups and further discusses potential links between mental health issues associated with each technology and implications of overuse.

scholarly journals Time to First Cigarette and Self-Reported Health Among US Adult Smokers

2019 ◽  
Vol 12 ◽  
pp. 1179173X1882526 ◽  
Author(s):  
Baksun Sung
Keyword(s):  
United States ◽  
Propensity Score ◽  
Odds Ratio ◽  
Adjusted Odds Ratio ◽  
Smoking Behavior ◽  
The United States ◽  
Elevated Risk ◽  
Poor Health ◽  
Increased Risk ◽  
Reported Health

Background: Numerous studies have reported that shorter time to first cigarette (TTFC) is linked to elevated risk for smoking-related morbidity. However, little is known about the influence of early TTFC on self-reported health among current smokers. Hence, the objective of this study was to examine the association between TTFC and self-reported health among US adult smokers. Methods: Data came from the 2012-2013 National Adult Tobacco Survey (NATS). Current smokers aged 18 years and older (N = 3323) were categorized into 2 groups based on TTFC: ≤ 5 minutes (n = 1066) and >5 minutes (n = 2257). Propensity score matching (PSM) was used to control selection bias. Results: After adjusting for sociodemographic and smoking behavior factors, current smokers with early TTFC had higher odds for poor health in comparison with current smokers with late TTFC in the prematching (adjusted odds ratio [AOR] = 1.65; 95% confidence interval [CI] = 1.31-2.08) and postmatching (AOR = 1.60; 95% CI = 1.22-2.09) samples. Conclusions: In conclusion, smokers with early TTFC were associated with increased risk of poor health in the United States. To reduce early TTFC, elaborate efforts are needed to educate people about harms of early TTFC and benefits of stopping early TTFC.

scholarly journals Tuberculosis in the 1990s: From Bedside to Bench and Back

1999 ◽  
Vol 6 (4) ◽  
pp. 341-344
Author(s):  
Frances B Jamieson ◽  
Pamela Chedore
Keyword(s):  
United States ◽  
New Technologies ◽  
The United States ◽  
Clinical Impact ◽  
Downward Trend ◽  
Drug Resistant ◽  
Critical Part

Since the mid-1980s, the rate of new cases of tuberculosis (TB) diagnosed in Canada ceased to follow a downward trend, and has instead stabilized at approximately 7 cases/100,000 population. In the United States, a similar trend emerged, such that in the early 1990s there was an increase in new cases of TB. Outbreaks of drug-resistant TB also occurred with devastating clinical impact. These observations prompted laboratories to re-examine their role in halting the spread of TB. Laboratories play a critical part in the diagnosis of TB; procedures must be optimized to provide rapid and accurate results. This review discusses the role of the mycobacteriology laboratory in the diagnosis of TB, and how new technologies available today have enhanced the ability of the laboratory to provide timely, efficient and accurate results.

BURDEN OF MORTALITY AND DISEASE ATTRIBUTABLE TO HOSPITALIZED ATRIAL FIBRILLATION IN CIRRHOTIC PATIENTS IN THE UNITED STATES: A NATIONWIDE, PROPENSITY SCORE MATCHED ANALYSIS

2019 ◽  
Vol 73 (9) ◽  
pp. 359
Author(s):  
Tarun Jacob Bathini ◽  
Wisit Cheungpasitporn ◽  
Charat Thongprayoon ◽  
Ronpichai Chokesuwattanaskul ◽  
Patompong Ungprasert ◽  
...  
Keyword(s):  
United States ◽  
Atrial Fibrillation ◽  
Propensity Score ◽  
The United States ◽  
Cirrhotic Patients

scholarly journals The History, Present and Future of Allergen Standardization in the United States and Europe

2021 ◽  
Vol 12 ◽  
Author(s):  
Julia Zimmer ◽  
Jennifer Bridgewater ◽  
Fatima Ferreira ◽  
Ronald van Ree ◽  
Ronald L. Rabin ◽  
...  
Keyword(s):  
United States ◽  
New Technologies ◽  
The United States ◽  
Cross Product ◽  
Immunological Methods ◽  
The European Union ◽  
Product Standardization ◽  
Long Time ◽  
Allergen Standardization ◽  
Synthetic Medicinal

The topic of standardization in relation to allergen products has been discussed by allergists, regulators, and manufacturers for a long time. In contrast to synthetic medicinal products, the natural origin of allergen products makes the necessary comparability difficult to achieve. This holds true for both aspects of standardization: Batch-to-batch consistency (or product-specific standardization) and comparability among products from different manufacturers (or cross-product comparability). In this review, we focus on how the United States and the European Union have tackled the topic of allergen product standardization in the past, covering the early joint standardization efforts in the 1970s and 1980s as well as the different paths taken by the two players thereafter until today. So far, these two paths have been based on rather classical immunological methods, including the corresponding benefits like simple feasability. New technologies such as mass spectrometry present an opportunity to redefine the field of allergen standardization in the future.

scholarly journals The comparison of vaccine hesitancy of COVID-19 vaccination in China and the United States

2021 ◽  
Author(s):  
Taoran Liu ◽  
Zonglin He ◽  
Jian Huang ◽  
Ni Yan ◽  
Qian Chen ◽  
...  
Keyword(s):  
United States ◽  
Propensity Score ◽  
Propensity Score Matching ◽  
Discrete Choice ◽  
Choice Experiments ◽  
The United States ◽  
Discrete Choice Experiments ◽  
Vaccine Hesitancy ◽  
The Us ◽  
The Cost

AbstractObjectivesTo investigate the differences in vaccine hesitancy and preference of the currently available COVID-19 vaccines between two countries, viz. China and the United States (US).MethodA cross-national survey was conducted in both China and the US, and discrete choice experiments as well as Likert scales were utilized to assess vaccine preference and the underlying factors contributing to the vaccination acceptance. A propensity score matching (PSM) was performed to enable a direct comparison between the two countries.ResultsA total of 9,077 (5,375 and 3,702, respectively, from China and the US) respondents have completed the survey. After propensity score matching, over 82.0% respondents from China positively accept the COVID-19 vaccination, while 72.2% respondents form the US positively accept it. Specifically, only 31.9% of Chinese respondents were recommended by a doctor to have COVID-19 vaccination, while more than half of the US respondents were recommended by a doctor (50.2%), local health board (59.4%), or friends and families (64.8%). The discrete choice experiments revealed that respondents from the US attached the greatest importance to the efficacy of COVID-19 vaccines (44.41%), followed by the cost of vaccination (29.57%), whereas those from China held a different viewpoint that the cost of vaccination covers the largest proportion in their trade-off (30.66%), and efficacy ranked as the second most important attribute (26.34%). Also, respondents from China tend to concerned much more about the adverse effect of vaccination (19.68% vs 6.12%) and have lower perceived severity of being infected with COVID-19.ConclusionWhile the overall acceptance and hesitancy of COVID-19 vaccination in both countries are high, underpinned distinctions between countries are observed. Owing to the differences in COVID-19 incidence rates, cultural backgrounds, and the availability of specific COVID-19 vaccines in two countries, the vaccine rollout strategies should be nation-dependent.

scholarly journals PRACTICE OF IRVING JOHN GILL MODERNISM

2021 ◽  
Vol 11 (1) ◽  
pp. 143-159
Author(s):  
Vasily D. FILIPPOV
Keyword(s):  
United States ◽  
Los Angeles ◽  
End Of Life ◽  
New Technologies ◽  
Residential Buildings ◽  
The United States ◽  
World Exhibition ◽  
The Ideal ◽  
Life Projects

The article is devoted to the work of Irving John Gill during his heyday, and then in conditions when the principles of modernism discovered by him, due to the lack of society’s need for new architecture in the United States, were not needed in this country - from 1909 until his death in 1936. New technologies used by Gill in the construction of public and residential buildings from concrete are described as well as his unsuccessful participation in the Panama-California World Exhibition of 1915-191, the construction near Los Angeles of the “ideal” city of Torrance and end-of-life projects. The reasons why Gill did not become the leader of the American and one of the leaders of world architecture are discussed, and his work is still controversial.

scholarly journals O papel das estratégias norte-americanas para as rupturas paradigmáticas na orientação da Política Externa jordaniana na segunda metade do século XX/The role of U.S. strategies for the paradigmatic changes in Jordanian foreign policy

2016 ◽  
Vol 5 (1) ◽  
pp. 186-216
Author(s):  
Leonardo Luiz Silveira Da Silva
Keyword(s):  
United States ◽  
Twentieth Century ◽  
Foreign Policy ◽  
World War Ii ◽  
Middle East ◽  
World Order ◽  
The United States ◽  
Economic Activities ◽  
Peace Agreement ◽  
War Of Independence

Resumo: A descolonização do Oriente Médio que originou novos Estados na região da Bacia do rio Jordão, coincide temporalmente com um novo arranjo da ordem mundial que se reorganizava no período pós-Segunda Guerra Mundial. A trajetória da política externa da Jordânia na segunda metade do século XX é extremamente didática para entendermos os efeitos das relações de poder entre as nações em âmbito regional e global para a mudança de comportamento dos Estados que praticavam políticas anti-hegemônicas. Nesta trajetória destaca-se a intensa disputa pelos escassos recursos hídricos regionais, à medida que o recurso é fundamental para o desenvolvimento das atividades econômicas e para a própria soberania do Estado. Na já distante década de 1950, poucos anos após o conflito da Guerra de Independência que opôs Israel e os Estados árabes vizinhos, a Jordânia passou a adotar uma postura intransigente em relação à aproximação com Israel, apesar dos esforços dos Estados Unidos para promover a estabilidade regional. Com o acordo de paz entre Egito e Israel, mediado pelos Estados Unidos e costurado na virada das décadas de 1970 e 1980, o tabu da oposição sistemática a Israel foi rompido. Desta forma, este artigo tem como objetivo apresentar as mudanças na política externa da Jordânia na segunda metade do século XX, associando estas mudanças às novas estratégias norte-americanas para região, permitindo a compreensão das novas formas de imperialismo que dominam o cenário do Oriente Médio desde a década de 1970.Palavras-Chave: Jordânia, Estados Unidos, Israel, políticas anti-hegemônicas. Abstract: The decolonization of the Middle East that originated in the new states of the Jordan Basin region coincides temporally with a new arrangement of the world order, which is rearranged in the post - World War II period. The trajectory of the Jordanian foreign policy in the second half of the twentieth century is extremely didactic to understand the effects of power relations between nations on a regional and global level to the changing behavior of States which practiced anti - hegemonic politics. On this path there is the intense competition for scarce regional water resources, as the feature is essential for the development of economic activities and the very sovereignty of the state. In the distant 1950s, a few years after the conflict of the War of Independence which opposed Israel and neighboring Arab states, Jordan adopted an uncompromising stance towards rapprochement with Israel, despite U.S. efforts to promote peace in the region. With the peace agreement between Egypt and Israel, brokered by the United States and sewn at the turn of the 1970s and 1980s, the pattern of systematic opposition to Israel was broken. This paper aims to present the changes in Jordan's foreign policy in the second half of the twentieth century, linking these changes to the new US strategy for the region, allowing the understanding of new forms of imperialism which dominate the Middle East scenario since the decade 1970.Keywords: Jordan, United States, Israel, anti - hegemonic politics.

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