๐ฑ Week 7 Homework โ Feedback
๐ฑ Week 7 Homework โ Feedback
Student: Iusupova Farangizbegim
Assignment: Solow Model with Technological & Population Growth
โ Overall Assessment
Result: โ More than 50% Correct
Excellent submission with clean code structure, correct helper function, and comprehensive interpretation. The script stores results efficiently and produces clear plots. The main omissions are: (1) missing steady-state reference lines on both plots, and (2) figures saved with incorrect filename (missing extension). The interpretation section is particularly thorough and well-structured.
๐ Task-by-Task Checklist
| # | Requirement | Status | Notes |
|---|---|---|---|
| 1 | Separate simulate_growth_tech.m helper with correct signature |
โ | Provided with four outputs. |
| 2 | Helper preallocates arrays and final values | โ | Column vectors, final period handled. |
| 3 | Law of motion divides by (1+n)(1+g) |
โ | Correct implementation. |
| 4 | Technology path updates with (1+g) |
โ | Included in loop. |
| 5 | Main script sets required parameters (ฮฑ, ฮด, s, T=80, k0, A0) |
โ | Matches homework specification. |
| 6 | Scenario matrix includes (0,0), (0.01,0.02), (0.02,0.03) |
โ | Stored in scenarios cell array. |
| 7 | Reuses simulation outputs for later steps | โ | Stores results in arrays (k_results, etc.). |
| 8 | Plot k_t for the three scenarios |
โ | Left subplot shows all paths. |
| 9 | Add steady-state reference lines on k_t plot |
โ | Missing yline overlays. |
| 10 | Plot y_t/A_t for the three scenarios |
โ | Right subplot implemented. |
| 11 | Add steady-state reference lines on y_t/A_t plot |
โ | Missing yline overlays. |
| 12 | Save figures to Figures/ (PNG/PDF) |
โ ๏ธ | Saved but filename missing extension (should be .png). |
| 13 | Provide steady-state summary (table or print) | โ | Excellent fprintf summary with comparisons. |
| 14 | Interpretation answers both homework questions | โ | Comprehensive three-part interpretation. |
| 15 | Code hygiene (comments, no cd, folder guard) |
โ | Well-organized, mkdir guard included. |
Score: 11/15 tasks fully correct, 1/15 partial, 3/15 missing โ โ
๐ Evidence & Highlights
71:87:docs/week7/Homework submissions/Iusupova Farangizbegim/week7_homework.m
fprintf('\nSteady State Analysis:\n');
fprintf('=====================\n');
for i = 1:length(scenarios)
...
fprintf(' Steady state k* = %.4f\n', k_star);
fprintf(' Steady state y*/A = %.4f\n', y_star_per_effective);
๐ก Suggestions for Improvement
- Add steady-state reference lines: Include
ylineoverlays on both subplots showingk*and(y/A)*for each scenario. This will make the convergence paths visually comparable to the target levels. - Fix figure filename: Change
'Figures/week7_homework_figures'to'Figures/week7_homework_figures.png'in theprint()command to ensure the file is saved with the correct extension.
๐งพ Summary
Strong submission with excellent code organization and thorough interpretation. Adding steady-state reference lines to the plots will make the visual analysis complete and align with homework expectations.
Grade: โ (More than 50% correct)