exchange rate did not because a change in the value 
of the firm since the company in Thailand used the 
bath currency in its operations. The results support 
the study of Taoulaou (2014). 
GDP does not affect the capital structure and 
firm value in SET. If economic growth rises / high, 
then an indication that the prospect of investment is 
good. Economic growth with firm value will move 
in the same direction as increasing economic growth 
will be caught as a signal of increased investment 
activity so that the firm value will increase. This 
study supports Ekstrom's research (2015).   
ROA in IDX and SET shows that ROA has the 
negative and significant effect on capital structure. 
The results of this study are consistent with the 
Packing Order Theory, Myers (1984) states that in 
conducting a funding policy the company prioritizes 
the use of retained earnings, then the use of debt and 
new stock emissions. This study supports the 
research of Pendy (2001), Nagano (2003), 
Deesomsak, at.al (2004), Delcoure (2006), Huang & 
Song (2006), Eni Safitri (2012), and Md Faruk H 
(2012). ROA has a positive and significant impact 
on the firm value in IDX and SET. The greater the 
profitability, the higher the stock price in the firm 
value. This study supports the research of Titman 
and Tsyplakov (2005). 
Non-Debt Tax Shields have no significant effect 
on capital structure in IDX. Not influencing NDTS 
shows that the value of depreciation and 
amortization of existing companies in Indonesia is 
not enough to increase the company's cash flow so it 
is not taken into account in reducing the proportion 
of debt. This study supports the research of Chen 
(2004) and Akhtar (2005). The results of the SET 
study show that NDTS has a positive and significant 
effect on capital structure. This indicates that the 
increase in NDTS can be used as a substitute for 
debt. This study supports the research of Delcour 
(2006), and Md Faruk H (2012). NDTS has a 
negative and significant effect on the value of the 
company in IDX. This indicates that the greater the 
depreciation and amortization the greater the tax 
savings so that the greater the accumulation of 
resources will increase the firm value. This study 
supports Deesomsak's research (2004), and Anshu 
Handoo (2014). NDTS has no significant effect on 
firm value in SET. This indicates that the amount of 
depreciation and amortization is not significant 
enough to increase the company's cash flow so as 
not to affect the firm value. 
The result of research in Indonesia shows that 
CAPEX has the significant effect on capital 
structure. The bigger the CAPEX the greater the 
capital requirement of the company to meet its 
needs, so that the company will seek funds from 
outside that is by adding debt. This study supports 
the research of Boodhoo Roshan (2009). The result 
of research in SET shows that CAPEX has no 
significant effect on capital structure. This is 
because in Thailand in enlarging its fixed assets 
using internal funds of the company. The results of 
research on IDX and SET shows CAPEX has a 
significant influence on firm value. The more long-
term investments (fixed assets) that provide benefits 
in the future will increase the stock price or firm 
value. This research supports the research of Coles, 
et al (2004), Desak and Ni Wayan (2007), Sarpi 
(2009), Rahmiati and Sari (2013). 
The asset structure has no significant effect on 
capital structure in IDX and SET. No effect on the 
structure of assets on the capital structure because of 
manufacturing firms in Indonesia and Thailand 
because most of the fixed assets except land is 
already on the watch in insurance or companies 
prefer margins to minimize risk. So the size of the 
company's asset structure does not affect the debt. 
This study supports Nagano's (2003) and Taou you 
(2014) research. The results of the research on IDX 
show that the asset structure has no significant effect 
on firm value. This result is not in accordance with 
the hypothesis that predicts the greater the asset 
structure the higher the value of the firm. This 
research supports Solechan's research (2009). The 
number of tangible fixed assets is not a prospect to 
increase the firm value but stock holders in investing 
capital will look at the prospect of companies that 
earn a promising profit, thereby increasing the firm 
value. While in Thailand, the asset structure has a 
significant influence on the firm value. This research 
supports the research of Fama (1978) and 
Harmuningsih (2013). 
The results of research on IDX and SET shows 
CFD has no significant effect on capital structure. 
This indicates that with the use of debt in the capital 
structure is not affected by financial risk, it can be 
said that debt to manufacturing companies in 
Indonesia and Thailand is still at a level that can be 
controlled by the company. This study supports the 
research of Chen (2004), Teddy (2005). The results 
of the research at IDX and SET show that CFD has 
no significant effect on firm value. This indicates 
that the use of debt can still be controlled with the 
benefits obtained by the company so as not to affect 
the firm value. 
The results of the research on IDX and SET 
shows the capital structure has a negative and 
significant effect on firm value. Negative influence