School of Health Policy and Management, Korea University College of Health Science, Seoul, Korea
Copyright © 2015 Korea Centers for Disease Control and Prevention. Published by Elsevier Korea LLC. All rights reserved.
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AD = advertising expense; BS = size of board of directors; FOR = foreign ownership; INS = institutional investors; Max = maximum; Min = minimum; Obs = Observations; ODR = outside directors; OWN = major shareholders; RD = research and development investment intensity; SAE = selling, general, and administrative expenses; SD = standard deviation; SIZE = business scale; YEAR = firm age.
RD | OWN | FOR | INS | ODR | SIZE | YEAR | BS | AD | SAE | |
---|---|---|---|---|---|---|---|---|---|---|
RD | 1 | |||||||||
OWN | −0.1354∗ | 1 | ||||||||
FOR | 0.003 | −0.0184 | 1 | |||||||
INS | −0.0997∗ | −0.1134∗ | −0.0143 | 1 | ||||||
ODR | −0.0246 | −0.1056∗ | 0.1301∗ | −0.066 | 1 | |||||
SIZE | 0.0389 | −0.2141∗ | 0.4314∗ | 0.0978∗ | 0.4349∗ | 1 | ||||
YEAR | −0.2109∗ | −0.2721∗ | 0.2522∗ | 0.1154∗ | 0.3659∗ | 0.5650∗ | 1 | |||
BS | −0.0075 | −0.0575 | 0.1943∗ | 0.0979∗ | 0.3092∗ | 0.4694∗ | 0.3439∗ | 1 | ||
AD | −0.0914∗ | −0.1019∗ | 0.0991∗ | 0.1582∗ | 0.0279 | 0.2471∗ | 0.1575∗ | 0.0786∗ | 1 | |
SAE | 0.2426∗ | −0.1339∗ | −0.1069∗ | −0.0447 | 0.0096 | −0.0728∗ | 0.1075∗ | 0.0034 | 0.3469∗ | 1 |
AD = advertising expense; BS = size of board of directors; FOR = foreign ownership; INS = institutional investors; ODR = outside directors; OWN = major shareholders; RD = research and development investment intensity; SAE = selling, general, and administrative expenses; SIZE = business scale; YEAR = firm age.
p < 0.05.
p < 0.01.
Coef. | SE | Coef. | SE | Coef. | SE | Coef. | SE | Coef. | SE | |
---|---|---|---|---|---|---|---|---|---|---|
SIZE | 3.987∗ | 1.165 | 3.867∗ | 1.181 | 4.150∗ | 1.204 | 4.452∗ | 1.166 | 3.195∗ | 1.223 |
YEAR | 2.049† | 0.936 | 1.493 | 0.910 | 1.402 | 0.913 | 1.251 | 0.931 | 2.142† | 0.953 |
BS | −2.417 | 1.585 | −1.708 | 1.582 | −2.036 | 1.589 | −2.013 | 1.596 | −2.289 | 1.594 |
AD | −0.114 | 0.0822 | −0.0942 | 0.0824 | −0.0925 | 0.0835 | −0.101 | 0.0834 | −0.0943 | 0.0835 |
SAE | 0.0351‡ | 0.0197 | 0.0281 | 0.0196 | 0.0254 | 0.0199 | 0.0279 | 0.0322 | 0.0200 | |
OWN | 0.0591∗ | 0.0195 | 0.0584∗ | 0.0196 | ||||||
FOR | 0.0553† | 0.0215 | 0.0542† | 0.0216 | ||||||
INS | −0.0392 | 0.0353 | −0.0125 | 0.0358 | ||||||
ODR | 0.00657 | 0.0139 | 0.00535 | 0.0139 | ||||||
Constant | −28.93∗ | 8.732 | −25.84∗ | 8.911 | −27.32∗ | 9.183 | −29.86∗ | 8.838 | −23.16† | 9.248 |
Adj R2 | 0.084 | 0.08 | 0.073 | 0.072 | 0.093 | |||||
Obs | 786 | 786 | 786 | 786 | 786 | |||||
ID | 81 | 81 | 81 | 81 | 81 |
AD = advertising expense; Adj = adjusted; BS = size of board of directors; Coef. = coefficient; FOR = foreign ownership; ID = Company; INS = institutional investors; Obs = Observations; ODR = outside directors; OWN = major shareholders; RD = research and development investment intensity; SAE = selling, general, and administrative expenses; SE = standard error; SIZE = business scale; YEAR = firm age.
Variable | Definition | ||
---|---|---|---|
Dependent | R&D investment intensity | RD | (Research costs + ordinary development costs)/sales × 100 |
Independent | Major shareholders | OWN | (Ordinary shares owned by major shareholders/total ordinary shares) × 100 |
Foreign ownership | FOR | (Ordinary shares owned by foreigners/total ordinary shares) × 100 | |
Institutional investors | INS | (Ordinary shares owned by institutional investors/total ordinary shares) × 100 | |
Outside directors | ODR | (No. of outside directors/total no. of registered directors) × 100 | |
Control | Business scale | SIZE | ln (total assets) |
Firm age | YEAR | ln (years passed after the firm was listed) | |
BOD size | BS | ln (registered directors) | |
Advertising expense | AD | (Advertising expense/sales) × 100 | |
SG&A | SAE | [(SG&A – ordinary development costs)/sales] × 100 |
Year | Firms | Share | Cumulative |
---|---|---|---|
2000 | 39 | 4.96 | 4.96 |
2001 | 42 | 5.34 | 10.31 |
2002 | 48 | 6.11 | 16.41 |
2003 | 51 | 6.49 | 22.90 |
2004 | 52 | 6.62 | 29.52 |
2005 | 56 | 7.12 | 36.64 |
2006 | 58 | 7.38 | 44.02 |
2007 | 62 | 7.89 | 51.91 |
2008 | 68 | 8.65 | 60.56 |
2009 | 72 | 9.16 | 69.72 |
2010 | 77 | 9.80 | 79.52 |
2011 | 80 | 10.18 | 89.69 |
2012 | 81 | 10.31 | 100.00 |
Variable | Obs | Mean | SD | Min | Max |
---|---|---|---|---|---|
RD | 786.00 | 6.29 | 9.10 | 0.12 | 99.07 |
SIZE | 786.00 | 7.97 | 0.43 | 6.98 | 9.24 |
YEAR | 786.00 | 1.02 | 0.43 | 0.00 | 1.71 |
BS | 786.00 | 0.70 | 0.15 | 0.00 | 1.18 |
AD | 786.00 | 3.53 | 3.32 | 0.00 | 23.32 |
SAE | 786.00 | 36.33 | 14.56 | 3.26 | 141.77 |
OWN | 786.00 | 37.03 | 14.99 | 2.31 | 79.50 |
FOR | 786.00 | 5.57 | 10.17 | 0.00 | 57.79 |
INS | 786.00 | 1.36 | 4.45 | 0.00 | 45.05 |
ODR | 786.00 | 23.36 | 15.84 | 0.00 | 83.33 |
RD | OWN | FOR | INS | ODR | SIZE | YEAR | BS | AD | SAE | |
---|---|---|---|---|---|---|---|---|---|---|
RD | 1 | |||||||||
OWN | −0.1354 | 1 | ||||||||
FOR | 0.003 | −0.0184 | 1 | |||||||
INS | −0.0997 | −0.1134 | −0.0143 | 1 | ||||||
ODR | −0.0246 | −0.1056 | 0.1301 | −0.066 | 1 | |||||
SIZE | 0.0389 | −0.2141 | 0.4314 | 0.0978 | 0.4349 | 1 | ||||
YEAR | −0.2109 | −0.2721 | 0.2522 | 0.1154 | 0.3659 | 0.5650 | 1 | |||
BS | −0.0075 | −0.0575 | 0.1943 | 0.0979 | 0.3092 | 0.4694 | 0.3439 | 1 | ||
AD | −0.0914 | −0.1019 | 0.0991 | 0.1582 | 0.0279 | 0.2471 | 0.1575 | 0.0786 | 1 | |
SAE | 0.2426 | −0.1339 | −0.1069 | −0.0447 | 0.0096 | −0.0728 | 0.1075 | 0.0034 | 0.3469 | 1 |
Coef. | SE | Coef. | SE | Coef. | SE | Coef. | SE | Coef. | SE | |
---|---|---|---|---|---|---|---|---|---|---|
SIZE | 3.987 | 1.165 | 3.867 | 1.181 | 4.150 | 1.204 | 4.452 | 1.166 | 3.195 | 1.223 |
YEAR | 2.049 | 0.936 | 1.493 | 0.910 | 1.402 | 0.913 | 1.251 | 0.931 | 2.142 | 0.953 |
BS | −2.417 | 1.585 | −1.708 | 1.582 | −2.036 | 1.589 | −2.013 | 1.596 | −2.289 | 1.594 |
AD | −0.114 | 0.0822 | −0.0942 | 0.0824 | −0.0925 | 0.0835 | −0.101 | 0.0834 | −0.0943 | 0.0835 |
SAE | 0.0351 | 0.0197 | 0.0281 | 0.0196 | 0.0254 | 0.0199 | 0.0279 | 0.0322 | 0.0200 | |
OWN | 0.0591 | 0.0195 | 0.0584 | 0.0196 | ||||||
FOR | 0.0553 | 0.0215 | 0.0542 | 0.0216 | ||||||
INS | −0.0392 | 0.0353 | −0.0125 | 0.0358 | ||||||
ODR | 0.00657 | 0.0139 | 0.00535 | 0.0139 | ||||||
Constant | −28.93 | 8.732 | −25.84 | 8.911 | −27.32 | 9.183 | −29.86 | 8.838 | −23.16 | 9.248 |
Adj R2 | 0.084 | 0.08 | 0.073 | 0.072 | 0.093 | |||||
Obs | 786 | 786 | 786 | 786 | 786 | |||||
ID | 81 | 81 | 81 | 81 | 81 |
BOD = board of directors; R&D = research and development; SG&A = selling, general, and administrative expenses.
AD = advertising expense; BS = size of board of directors; FOR = foreign ownership; INS = institutional investors; Max = maximum; Min = minimum; Obs = Observations; ODR = outside directors; OWN = major shareholders; RD = research and development investment intensity; SAE = selling, general, and administrative expenses; SD = standard deviation; SIZE = business scale; YEAR = firm age.
AD = advertising expense; BS = size of board of directors; FOR = foreign ownership; INS = institutional investors; ODR = outside directors; OWN = major shareholders; RD = research and development investment intensity; SAE = selling, general, and administrative expenses; SIZE = business scale; YEAR = firm age.
AD = advertising expense; Adj = adjusted; BS = size of board of directors; Coef. = coefficient; FOR = foreign ownership; ID = Company; INS = institutional investors; Obs = Observations; ODR = outside directors; OWN = major shareholders; RD = research and development investment intensity; SAE = selling, general, and administrative expenses; SE = standard error; SIZE = business scale; YEAR = firm age.