Abstract
This chapter studies the dynamics of the Kaldor–Kalecki model of national income and capital stock. The investment function is assumed to have not only a Kaldorian characteristics, namely, a S-shaped form but also a Kaleckian characteristics, that is, a gestation delay between “investment decision” and “investment implementation.” We divide the analysis into two parts. In the first part, we assume that the time period under consideration is short enough so that the capital stock is not affected by the flow of investment and then examine the delay effect on dynamics of national income. In the second part, taking the capital accumulation into account, we draw attention to how the delay affects cyclic dynamics observed in the nondelay Kaldor–Kalecki model. It is demonstrated that the investment delay quantitatively affects the dynamic behavior but not qualitatively.
The authors highly appreciate the financial supports from the MEXT-Supported Program for the Strategic Research Foundation at Private Universities 2013–2017 and the Japan Society for the Promotion of Science (Grant-in-Aid for Scientific Research (C) 24530202, 25380238 and 26380316). The usual disclaimers apply.
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Notes
- 1.
Since “lag” and “delay” do not have distinctive different meanings, we use these words interchangeably. In particular, we mainly use “delay” in this study.
- 2.
There are several extensions of this delay investment function. Kaddar and Talibi Alaoui (2008) introduce time delay also in capital stock in capital accumulation equation (i.e., \(\Phi (Y(t-\theta ),K(t-\theta ))\)). Zhou and Li (2009) assume that the investment function in the capital accumulation depends on the income and the capital stock at different gestation periods (i.e., \(\Phi (Y(t-\theta _{1}),K(t-\theta _{2}))\) with \(\theta _{1}\ne \theta _{2}\)).
- 3.
This is a simplified version of the investment function adopted in Lorenz (1987). It is replaced with the full version in the latter half of this chapter.
- 4.
- 5.
See, for example, Lorenz (1993).
- 6.
The value of \(s_{a}\) is numerically obtained and the value of \(s_{\beta }\) is analytically determined as will be seen.
- 7.
Notice that \(s_{2}\) is identical with \(s_{\beta }.\) See footnote 6.
- 8.
We use the green curve later when the delay model is examined.
- 9.
Solving the second equation yields the same partition curve in a different form.
- 10.
In Fig. 6, \(s_{a}\) and \(s_{A}\) are not labeled to avoid confusion.
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Matsumoto, A., Szidarovszky, F. (2016). Delay Kaldor–Kalecki Model Revisited. In: Matsumoto, A., Szidarovszky, F., Asada, T. (eds) Essays in Economic Dynamics. Springer, Singapore. https://doi.org/10.1007/978-981-10-1521-2_11
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DOI: https://doi.org/10.1007/978-981-10-1521-2_11
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