Question

Difficulty: HardDevelopment Planning Strategies and Models

A developing country targets an annual economic growth rate of 8%8\%. The economy's Incremental Capital-Output Ratio (ICOR) is estimated at 3.53.5, and its current domestic savings rate is 21%21\% of national income. According to the Harrod-Domar growth model, what is the foreign savings gap (as a percentage of national income) that must be filled to achieve this growth target?

  1. 7.0%7.0\%Answer
  2. B
    28.0%28.0\%
  3. C
    2.29%2.29\%
  4. D
    4.5%4.5\%

Answer

7.0%7.0\% of national income
According to the Harrod-Domar development planning model, the rate of economic growth (gg) equals the savings ratio (ss) divided by the Incremental Capital-Output Ratio (kk), expressed as g=skg = \frac{s}{k}. Rearranging this gives the total required savings rate s=g×k=8%×3.5=28%s^* = g \times k = 8\% \times 3.5 = 28\%. Given that domestic savings currently provide 21%21\% of national income, the remaining savings gap to be financed via external capital or foreign aid is 28%21%=7.0%28\% - 21\% = 7.0\%.

Step-by-Step Solution

1
Identify the basic Harrod-Domar growth equation relating growth rate (gg), savings rate (ss), and Incremental Capital-Output Ratio (kk).
Formula: g=skg = \frac{s}{k}
The Harrod-Domar model establishes that economic growth depends directly on the savings rate and inversely on the capital-output ratio.
2
Rearrange the equation to determine the total required domestic savings rate (ss^*) needed to achieve the target growth rate (g=8%g = 8\% or 0.080.08) with an ICOR (k=3.5k = 3.5).
s=g×k=8%×3.5=28%s^* = g \times k = 8\% \times 3.5 = 28\%
To achieve an 8%8\% growth rate with an ICOR of 3.53.5, the country must allocate 28%28\% of its national income to capital investment.
3
Calculate the savings gap by subtracting the current domestic savings rate (s=21%s = 21\%) from the total required savings rate (s=28%s^* = 28\%).
Savings Gap =ss=28%21%=7.0%= s^* - s = 28\% - 21\% = 7.0\%
The difference between required investment resources and available domestic savings defines the external financing requirement.

Key Concept

Harrod-Domar Growth Model and Savings Gap Analysis
Rate this question