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Organizational Evolution Under Endogenously Dynamic Selection Environment
Dong-In Kim(김동인),Jang Won Park(박장원),Naryoung Yu(유나령),Ji-hyun Kim(김지현) 연세대학교 경영연구소 2021 연세경영연구 Vol.58 No.3
조직의 진화과정에서 선택 (selection) 환경은 생물학의 영역에서 연구되어온 대부분의 진화 이론을 따라 외생적으로 주어지는 것으로 여겨져 왔다. 즉, 개별 개체가 선택의 환경에 영향을 줄 수 없다는 것이었다. 본 연구에서는 기존의 전산 모델 (computational model)을 계승하여, 내생적인 요인으로 인해 변화되는 선택 환경 아래서의 조직의 진화를 살펴본다. 개별 조직이 스스로 변화시킬 수 있는 선택 환경의 가능성을 도입하고, 각각의 선택 환경에서 가장 대표적인 조직 진화 방식인 돌연변이(mutation)와 모방(imitation)이 진화적 성과에 주는 영향을 살펴본다. 돌연변이와 모방은 각각 자체적, 모방적 혁신에 대응될 수 있는 조직 진화의 기재들이다. 돌연변이의 경우 선택 환경에 따라 각 기재의 진화적 성과가 상이하게 나타났으며, 모방의 경우 선택 환경에 상관없이 비슷한 정도의 성과를 보였다. 더 나아가 외생적인 선택 환경에서는 돌연변이와 모방의 상호 보완적 시너지 효과가 나타났으며, 내생적 선택 환경에서는 그러한 시너지 효과를 찾아내지 못했다. 본 연구는 조직의 진화와 그로 인한 성과를 연구하는 데에 있어 선택적 환경의 속성을 고려하는 것이 중요함을 주장한다. We consider organizational evolution in an endogenously changing selection environment. Following the majority of research on evolution in the biological realm, organizational scholars predominantly modeled selection environment as being exogenously endowed. We introduce a selection environment that can be shaped and modified by organizations themselves. In this endogenously dynamic environment, we examine the efficacy of two most representative evolutionary operators - mutation and imitation - in both exogenously and endogenously changing selection environment. We find that imitation fares quite differently depending on the type of selection environment while mutation is robust regardless of the environment. We further show that there is a complementary effect between mutation and imitation under the exogenously changing environment while there is no such effect under the endogenous setting. Overall, our study suggests that understanding the nature of evolutionary strategies for different selection regime is critical for organizational evolution.
Organizational Evolution Under Endogenously Dynamic Selection Environment
Dong-In Kim(김동인),Jang Won Park(박장원),Naryoung Yu(유나령),Ji-hyun Kim(김지현) 한국인사조직학회 2018 한국인사ㆍ조직학회 발표논문집 Vol.2018 No.1
We consider organizational evolution in an endogenously changing selection environment. Following the majority of research on evolution in the biological realm, organizational scholars predominantly modeled selection environment as being exogenously endowed. We introduce a selection environment that can be shaped and modified by organizations themselves. In this endogenously dynamic environment, we examine the efficacy of two most representative evolutionary operators – mutation and imitation – in both exogenously and endogenously changing selection environment. We find that imitation fares quite differently depending on the type of selection environment while mutation is robust regardless of the environment. We further show that there is a complementary effect between mutation and imitation under the exogenously changing environment while there is no such effect under the endogenous setting. Overall, our study suggests that understanding the nature of evolutionary strategies for different selection regime is critical for organizational evolution.
위장관 ; 허혈성 대장염의 내시경적 침범 범위 및 소견에 따른 임상 경과
조준현 ( Joon Hyun Cho ),김경옥 ( Kyeong Ok Kim ),정용욱 ( Yong Wook Jung ),김동인 ( Dong In Kim ),이시형 ( Si Hyung Lee ),장병익 ( Byung Ik Jang ) 대한소화기학회 2012 대한소화기학회지 Vol.60 No.1
Background/Aims: Ischemic colitis (IC) usually occurs in the elderly population and has a various clinical presentations from mild to severe forms. The aim of this study was to investigate the clinical outcomes according to the involved sites and colonoscopic findings in IC. Methods: We retrospectively analyzed the medical records of 77 patients who had diagnosed with IC between January 2000 and July 2010. The clinical outcomes were compared according to numbers of the involved segments, location and endoscopic findings. Results: Mean age of the patients was 70±11 years and male to female ratio was 1:1.26. Hematochezia (67.5%) and abdominal pain (63.6%) were the most common associated symptoms. The colonoscopic examination was performed at mean 4.6±3.7 days after the symptom onset. The most common involved segment was the sigmoid colon (72.7%). Duration of fasting, antibiotics therapy, hospital stay and mortality were significantly increased in the patients group with more involved segments (p<0.001, p=0.004, p<0.001, p<0.001, respectively). Duration of antibiotics therapy and hospital stay were significantly longer in the right colon involvement group (p=0.038, p=0.002, respectively). The time taken until the alleviation of symptoms and the white blood cells count were significantly longer and higher in the ulcer or gangrenous group (p=0.001, p=0.022, respectively). Conclusions: Evaluating the involved sites, the degree and severity of mucosal damage by colonoscopy may be important in predicting the clinical course and prognosis of the patients with IC. Early detection, careful monitoring and prompt treatment are crucial especially in the patients with ulcer or necrosis in colonscopic findings. (Korean J Gastroenterol 2012;60:19-25)
NF-kappaB 경로의 억제에 의한 lipopolysaccharide로 활성화된 대식세포의 토종다래(Actinidia arguta) 추출물의 항염증 효과
김동인(Dong In Kim),김현정(Hyun Jung Kim),이지혜(Ji Hye Lee),한소정(So Jung Han),김하은(Ha Eun Kim),박강수(Kang Soo Park),김효진(Hyo Jin Kim),남정희(Jeong Hee Nam),지경엽(Gyeong Yup Chi),안봉전(Bong Jeun An) 한국식품저장유통학회 2018 한국식품저장유통학회지 Vol.25 No.5