TY - BOOK AU - Blouin,Jennifer AU - Huizinga,Harry AU - Laeven,Luc AU - Nicodeme,Gaetan TI - Thin Capitalization Rules and Multinational Firm Capital Structure T2 - IMF Working Papers; Working Paper SN - 148438444X : SN - 1018-5941 PY - 2014/// CY - Washington, D.C. PB - International Monetary Fund KW - Business Taxes and Subsidies KW - imf KW - Capital Structure KW - Interest Payments KW - Multinational Firm KW - Tax Authorities KW - Tax Burdens KW - Australia KW - Denmark KW - Germany KW - Spain KW - United Kingdom N2 - This paper examines the impact of thin capitalization rules that limit the tax deductibility of interest on the capital structure of the foreign affiliates of US multinationals. We construct a new data set on thin capitalization rules in 54 countries for the period 1982-2004. Using confidential data on the internal and total leverage of foreign affiliates of US multinationals, we find that thin capitalization rules significantly affect multinational firm capital structure. Specifically, restrictions on an affiliate's debt-to-assets ratio reduce this ratio on average by 1.9%, while restrictions on an affiliate's borrowing from the parent-to-equity ratio reduce this ratio by 6.3%. Also, restrictions on borrowing from the parent reduce the affiliate's debt-to-assets ratio by 0.8%, which shows that rules targeting internal leverage have an indirect effect on the overall indebtedness of affiliate firms. The impact of capitalization rules on affiliate leverage is higher if their application is automatic rather than discretionary. Furthermore, thin capitalization regimes have aggregate firm effects: they reduce the firm's aggregate interest expense but lower firm valuation. Overall, our results show than thin capitalization rules, which thus far have been understudied, have a substantial effect on the capital structure within multinational firms, with implications for the firm's market valuation UR - http://elibrary.imf.org/view/IMF001/21106-9781484384442/21106-9781484384442/21106-9781484384442.xml UR - http://www.imfbookstore.org/IMFORG/9781484384442 ER -