An Investigation of Impact of Debt Structure on  the market value of Jordanian Transportation  Companies
        
     
    
        
            The objective of this paper is to investigate the impact of debt structure on the market 
value of transportationcompanies,debt structure was measured by both debt ratio and 
short term debt, while market value was measured by market share price. The paper 
conducted on the data of all the 12 transportation companies listed in Amman Stock 
Exchange. The study relied on multiple regression analysis to examine the impact of 
debt ratios on firm market value.The analysis result indicates thatmarket value is 
effected by debt structure significantly, both debt ratio andshort term debthad a 
negative impact on market value, and suggests that more debt is not always useful for 
market value.