RT Journal Article
T1 Cox regression with doubly truncated responses and time-dependent covariates: the impact of innovation on firm survival
A1 De Uña Alvarez, Jacobo
A1 Martínez Senra, Ana Isabel
A1 Otero Giraldez, Maria Soledad
A1 Quintás Corredoira, María de los Ángeles
K1 1209.99 Otras
K1 5311.99 Otras
AB The creation of new firms is an important incentive for the economic growth of a country, since it generates employment, it encourages the competition, and promotes innovation. In this work, we investigate the survival of Spanish firms which were created since 2001 and closed down between 2004 and 2012. The information was gathered from Technological Innovation Panel (PITEC), a survey with a focus the technological innovation in Spanish firms. In particular, a Cox regression model with time-dependent covariates was used in order to identify and quantify the determinants of the risk of exit for the firm. The selection bias due to the interval sampling for the firms was corrected by using methods for doubly truncated lifetimes. Interestingly, it is seen how the correction for the selection bias changes both the size and the statistical significance of the effects provided by standard Cox regression.
PB Journal of Applied Statistics
SN 02664763
YR 2023
FD 2023-02-16
LK http://hdl.handle.net/11093/5628
UL http://hdl.handle.net/11093/5628
LA eng
NO Journal of Applied Statistics: 1-13 (2023)
NO Agencia Estatal de Investigación | Ref. PID2020-118101GB-I00
DS Investigo
RD 04-dic-2024