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Marginal q and Firms' Capital Investments: Evidence from Time Series Data of Japanese Manufacturing Industries


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  • Masafumi Kozuka

    (Faculty of Policy Studies, University of Marketing and Distribution Sciences)

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    In this paper, we verify the predictability of marginal q on rms' capital invest- ments. We compare Granger's causality of four manufacturing industries with the LA- VAR model. We obtain the empirical results that the null hypothesis of no Granger's causality from marginal q to investments is accepted for the chemical industry and iron-steel industry, and it is rejected for the product machinery industry and trans- portation equipment industry. The results indicate that the chemical and iron-steel industry, with higher uncertainty and irreversibility, could not adjust their capital investments in response to the uctuation of Tobin's q, while the other industries could do so. Following the analytical implications by earlier theoritical studies, it is considered that uncertainty and irreversibility restrain their capital investments, or rms with uncertainty and disposal cost do not invest in equipment because of lower Tobin'q than the threshold value. Thus, the role of uncertainty and irreversibility is important for predicting capital investments by Tobin's q.

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    Paper provided by Graduate School of Economics, Kobe University in its series Discussion Papers with number 1411.

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    Length: 17pages
    Date of creation: Mar 2014
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    Handle: RePEc:koe:wpaper:1411

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    1. Ogawa, Kazuo & Kitasaka, Shin-ichi & Yamaoka, Hiroshi & Iwata, Yasuharu, 1996. "Borrowing Constraints and the Role of Land Asset in Japanese Corporate Investment Decision," Journal of the Japanese and International Economies, Elsevier, vol. 10(2), pages 122-149, June.
    2. Tobin, James, 1969. "A General Equilibrium Approach to Monetary Theory," Journal of Money, Credit and Banking, Blackwell Publishing, Blackwell Publishing, vol. 1(1), pages 15-29, February.
    3. Hayashi, Fumio, 1982. "Tobin's Marginal q and Average q: A Neoclassical Interpretation," Econometrica, Econometric Society, Econometric Society, vol. 50(1), pages 213-24, January.
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