The supply of maize in Kenya has often fallen short of the demand resulting to an influx of cheap maize imports from neighboring countries. Tradeoffs thus arise among commercial maize milling firms whether to import or use locally produced maize in their operations and which alternative maximizes their income. This study aimed to determine the effect of tradeoffs between maize importation and reliance on local production on the income of commercial maize milling firms in Kenya. Data was collected from 106 commercial maize milling firms that produced packaged maize flour. A census of the entire population was employed and a semi-structured questionnaire used to guide personal interviews and online surveys with the respondents. Data was analyzed using descriptive analysis, gross margins and two-stage least square regression. Results indicate that firms that used locally produced maize only were majorly micro to medium-scale, had relatively low-skilled employees, lower production capacity and employed relatively less sophisticated technology. Firms that used locally produced maize only in their operations realized higher incomes and lower cost of procuring maize monthly compared to firms that used both locally produced and imported maize. Additionally, the determinants of firm’s income were the miller’s decision on maize source, total number of employees, total cost of maize, mean monthly sales and mean production costs. Therefore, government policies should be geared towards lowering the cost of procuring maize from both local and import sources. These include reviewing import duties on food grain, streamlining cess collection across counties and improving road infrastructure.
Published in | International Journal of Agricultural Economics (Volume 9, Issue 3) |
DOI | 10.11648/j.ijae.20240903.15 |
Page(s) | 173-184 |
Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
Copyright |
Copyright © The Author(s), 2024. Published by Science Publishing Group |
Commercial Maize Milling Firms, Trade Offs, Two-Stage Least Square Regression
Variable | Local Only (N=47) | Both (N=59) | X2 |
---|---|---|---|
Firm Size | 12.3750** | ||
Micro (10.48%) | 90.91% | 0.09% | |
Small-scale (9.42%) | 50% | 50% | |
Medium-scale (13.33%) | 50% | 50% | |
Large-scale (66.67%) | 35.21% | 64.79% | |
Employee Skill Level | 25.1195*** | ||
Unskilled | 75% | 25% | |
Semi-skilled | 62.22% | 37.78% | |
Skilled | 14.63% | 85.37% | |
Highly-skilled | 42.86% | 57.14% | |
Technology used | 12.3331** | ||
Hammer mill | 66.67% | 33.33% | |
Attrition mill | 76.47% | 23.53% | |
Roller mill | 33.33% | 66.67% | |
Automated plc | 22.22% | 77.78% |
Variable | Local Only | Both | t-test | ||
---|---|---|---|---|---|
Mean | SE | Mean | SE | ||
Years of operation | 9.45 | 1.15300 | 13.44 | 2.336 | -1.4189* |
Production Capacity | 106.29 | 15.049 | 270.97 | 44.603 | -3.1795*** |
Total no. of employees | 30.72 | 10.608 | 61.36 | 7.658 | -2.3980** |
Variable | Local Only (N=47) | Both Local & Import (N=59) | t-test | ||
---|---|---|---|---|---|
Mean | SD | Mean | SD | ||
Quantity sold (in tons) | 207 | 31 | 441 | 53 | -3.5930*** |
Selling price (in Kshs) | 86,008 | 3,711 | 88,266 | 4,634 | -0.3679 |
Gross Revenue (Ksh/month) | 18,700,271 | 2,952,960 | 43,614,443 | 4,569,428 | -2.9813** |
Quantity purchased (ton) | 200 | 38 | 594 | 46 | -6.4222*** |
Price purchased (Ksh) | 52,078 | 1,241 | 54,808 | 2,951 | -0.7877 |
Cost of maize (Ksh) | 10,159,618 | 1,940,361 | 45,035,646 | 3,008,770 | -5.8127*** |
Labor (Ksh) | 8,456 | 541 | 7,577 | 390 | 1.3487* |
Fuel (Ksh) | 9,512 | 608 | 8,524 | 439 | 1.1804* |
Packaging (Ksh) | 9,513 | 609 | 8,525 | 438 | 1.1805* |
Utility (Ksh) | 7,928 | 507 | 7,104 | 365 | 1.3488* |
Distribution (Ksh) | 7,399 | 473 | 6,630 | 341 | 1.9020* |
Transport (Ksh) | 10,042 | 642 | 8,998 | 462 | 1.9098* |
Total Variable Costs (Ksh/month) | 10,212,469 | 349,907 | 45,083,004 | 314,113 | -2.5974*** |
Gross margin (Ksh/month) | 8,487,802 | 378,732 | -1,468,561 | 560,995 | 0.3657 |
Variables | Dependent Variable (LocalDec) | Dependent Variable (Log of Income1) | Dependent Variable (ImportDec) | Dependent Variable (Log of Income0) | ||
---|---|---|---|---|---|---|
Local Only | Both Local and Import | |||||
OLS (1st stage) (I) | OLS estimates (II) | 2SLS estimates (III) | OLS (1st stage) (IV) | OLS estimates (V) | 2SLS estimates (VI) | |
Intercept | 0.0451 | 18.4501*** | 17.6605*** | 3.5118 | 19.4734** | 7.6239 |
Region (Instrument) | 0.1604 | 0.9524 | 1.0107 | -0.5489** | 0.0409* | ----- |
Import Duties (Instrument) | 0.0001*** | 0.0063 | ------- | 0.0013* | 1.2934 | 1.5861 |
Import Decision | -------- | -------- | ------ | ------ | -1.7856 | 1.9621** |
Local purchase Decision | ------- | 0.0417 | 0.7873** | ------- | -------- | ------ |
Total no. of employees | -0.0001 | -0.0071 | -0.0054 | -0.0018 | 0.0314 | 0.0675* |
Mean monthly sales | 0.0006** | -0.0037** | -0.0047** | 0.0003 | -0.0070 | -0.0087** |
Mean production costs | 0.0014** | -0.0001 | -0.0001 | 0.0001 | -0.0001 | -0.0001*** |
Technology used | -0.0015 | -0.2564 | -0.3493 | -0.0206 | -1.0415 | -0.7944 |
Quantity of maize purchased (tons) | 0.0723 | -0.1161 | -0.1200 | 0.0719 | -0.1964 | -0.1042 |
Mean Domestic price of maize (ksh) | 0.0001 | -0.0001 | -0.0001 | 0.0001 | 0.0002 | -0.0001 |
Mean Import price of maize (ksh) | ------ | ------- | ------- | 0.0001 | -0.0001 | -0.0000 |
Total cost of maize (ksh) | 0.0695 | 0.0427 | -0.0480 | -0.0317 | 0.2845 | 0.9441** |
Import licenses | 0.1604 | 0.2102 | 0.3378 | 0.5491* | 1.8247 | 0.1625 |
KIPPRA | Kenya Institute for Public Policy Research and Analysis |
KNBS | Kenya National Bureau of Statistics |
NCPB | National Cereals and Produce Board |
[1] | Abodi, M. A., Obare, G. A., & Kariuki, I. M. (2022). Effects of Maize Importation on the Economic Welfare of Maize Producers and Consumers in Kenya: A Partial Equilibrium Model Approach. Contemporary Agriculture, 71(3–4), 155–164. |
[2] | Abodi, M. A., Kariuki, I. M., & Obare, G. A. (2021). An Analysis of the Determinants of Maize Import Volumes in Kenya. Theoretical Economics Letters, 11(02), 320–337. |
[3] | Abodi, M. A., Obare, G. A., & Kariuki, I. M. (2021). Supply and demand responsiveness to maize price changes in Kenya: An application of error correction autoregressive distributed lag approach. Cogent Food & Agriculture, 7(1). |
[4] | Akinoso, R., Balogun, I., & Alaka, A. (2021). Elucidating energy requirements for size reduction of malted maize, soybean and sorghum milling using attrition mill. Energy Conversion and Management: X, 11, 100100. |
[5] | Alarussi, A. S., & Alhaderi, S. M. (2018). Factors affecting profitability in Malaysia. Journal of Economic Studies, 45(3), 442–458. |
[6] | Andae, G. (2022, July 08). Kenya wants share of maize imports from the region raised. Business Daily. Retrieved August 29, 2022 from |
[7] | Anjaneyulu, Dommari & Haranath, G. (2023). Impact of Number of employees and Annual revenue on selected Companies share prices of IT Sector. 9. 611. |
[8] | De Groote, H., & Kimenju, S. C. (2012). Consumer Preferences for Maize Products in Urban Kenya. Food and Nutrition Bulletin, 33(2), 99–110. |
[9] | De Groote, H., Githinji, P. G., Munya, B. G., & Ricker-Gilbert, J. E. (2021). Economics of open-air sun drying in the maize value chain of Kenya. Journal of Agriculture and Food Research, 5, 100185. |
[10] | Dewi, P. E. D. M., Devi, S., & Masdiantini, P. R. (2021). Analysis of Cost of Sold and Production Costs on Company Profit. Proceedings of the 6th International Conference on Tourism, Economics, Accounting, Management, and Social Science (TEAMS 2021). |
[11] |
Enzama, W., Afidra, R., & Verster, A. (2017). Africa Maize Fortification Strategy 2017-2026. Smarter Futures. Retrieved July 18, 2023 from
https://www.smarterfutures.net/wp-content/uploads/2017/01/maize_FINAL_spreads.pdf |
[12] | FAO, IFAD, UNICEF, WFP and WHO. 2022. The State of Food Security and Nutrition in the World 2022. Repurposing food and agricultural policies to make healthy diets more affordable. Rome, FAO. |
[13] | Gwirtz, J. A., & Garcia‐Casal, M. N. (2013). Processing maize flour and corn meal food products. Annals of the New York Academy of Sciences, 1312(1), 66–75. Portico. |
[14] | Hugo De Groote. (2012). Consulting the stakeholders on pro-poor market segmentation of maize seed in Kenya. Journal of Development and Agricultural Economics, 4(3). |
[15] | Istan, M., Husainah, N., Murniyanto, M., Suganda, A. D., Siswanti, I., & Fahlevi, M. (2021). The effects of production and operational costs, capital structure and company growth on the profitability: Evidence from manufacturing industry. Accounting, 7(7), 1725–1730. |
[16] | Jayne, T. S., Myers, R. J., & Nyoro, J. (2008). The effects of NCPB marketing policies on maize market prices in Kenya. Agricultural Economics, 38(3), 313–325. |
[17] | Josiah, A. K. (2019). Development Of A Maintenance Strategy For Flour Milling Industry: A Case Study Of Corn Milling Industry In Kenya (Doctoral dissertation). |
[18] | Kaen, F. R., & Baumann, H. D. (2003). Firm Size, Employees and Profitability in U.S. Manufacturing Industries. SSRN Electronic Journal. |
[19] | Kang'ethe, E. (2011). Situation analysis: Improving food safety in the maize value chain in Kenya. Report prepared for FAO. College of Agriculture and Veterinary Science, University of Nairobi, Nairobi. |
[20] |
Kang’ethe, E., Mutua, F., Roesel, K. and Grace, D. 2020. Food safety landscape analysis: The maize value chain in Kenya. Nairobi, Kenya: ILRI.
https://cgspace.cgiar.org/server/api/core/bitstreams/ae73cfc3-510b-4290-a917-326eed46dec6/content |
[21] | Kenya National Bureau of Statistics (2019). 2019 Kenya Population and Housing Census Volume II: DISTRIBUTION OF POPULATION BY ADMINISTRATIVE UNITS. |
[22] | Khamila, S., Ndaka, D. S., Makokha, A., Kyallo, F., Kinyanjui, P. K., Kanensi, O. J., & Mwai, J. (2019). Status of commercial maize milling industry and flour fortification in Kenya. African Journal of Food Science, 13(3), 65-82. |
[23] | Kenya Institute of Public Policy Research and Analysis (2022). Stabilizing the prices of white maize in Kenya. Retrieved May 27, 2023, from |
[24] |
Makgetla, N. S. (2021). Tariffs on basic foods: evolution and impacts. Economic Research and Statistics Department, South African Reserve Bank.
https://www.resbank.co.za/content/dam/sarb/publications/working-papers/2021/WP%202119.pdf |
[25] | Masoud, A. R. (2013). The Role of Kenyan Maize Millers in Ensuring Food Security in East Africa (Doctoral dissertation, University of Nairobi). http://erepository.uonbi.ac.ke/handle/11295/59145 |
[26] | Maydeu-Olivares, A., Shi, D., & Rosseel, Y. (2019). Instrumental Variables Two-Stage Least Squares (2SLS) vs. Maximum Likelihood Structural Equation Modeling of Causal Effects in Linear Regression Models. Structural Equation Modeling: A Multidisciplinary Journal, 26(6), 876–892. |
[27] | Mmeri, A. N., Ongeri, B. O., & Ndolo, D. K. (2023). Effects of Uncertainity on Domestic Private Investments in Kenya. European Scientific Journal ESJ, 2. |
[28] | Mutiga, S. K., Mushongi, A. A., & Kangéthe, E. K. (2019). Enhancing Food Safety through Adoption of Long-Term Technical Advisory, Financial, and Storage Support Services in Maize Growing Areas of East Africa. Sustainability, 11(10), 2827. |
[29] |
Mwangi, A. (2023, March 14). DP: It’ll take six months for flour prices to drop. People Daily. Retrieved June 07, 2023 from
https://www.pd.co.ke/news/dp-itll-take-six-months-for-flour-prices-to-drop-173101/ |
[30] |
Nasir, A. (2005). Development and testing of a hammer mill. AU JT, 8(3), 124-130.
https://skoola.com/Files_books/design-and-construction-of-a-hammer-mill-machine.pdf |
[31] | Ndichu, J., Blohmke, J., Kemp, R., Adeoti, J., & Obayelu, A. E. (2015). The adoption of energy efficiency measures by firms in Africa: case studies of cassava processing in Nigeria and maize milling in Kenya. Innovation and Development, 5(2), 189–206. |
[32] | Ndwiga, J., Pittchar, J., Musyoka, P., Nyagol, D., Marechera, G., Omanya, G., & Oluoch, M. (2013). Constraints and Opportunities of Maize Production in Western Kenya. IITA, Nigeria. |
[33] | Ngotho, A. (2023, February 23). Alarm as importers struggle to access maize in global market. The Star. Retrieved June 07, 2023 from |
[34] | Orhun, G. E. (2013). Maize for life. International Journal of Food Science and Nutrition Engineering, 3(2), 13-16 |
[35] |
Ouma, J. O., & De Groote, H. (2011). Determinants of improved maize seed and fertilizer adoption in Kenya. Journal of Development and Agricultural Economics, 3(11), 529-536.
https://academicjournals.org/article/article1379942663_Ouma%20and%20De-Groote.pdf |
[36] | Rajkumar, K., Thejaswini, K., & Yuvashri, P. (2021). Automation of Sustainable Industrial Machine using PLC. Journal of Physics: Conference Series, 1979(1), 012049. |
[37] | Sausan Nabilah R, L. S. (2020). Effect of production Costs and Sales on the Company’s Net Profit. Jurnal Akuntansi, 24(2), 169. |
[38] | Semerci, A., Parlakay, O., & Çelik, A. D. (2014). Gross margin analysis in dairy cattle: a case study of Hatay Province, Turkey. Cust Agronegocio, 10, 154-170 |
[39] | Short, C., Mulinge, W., & Witwer, M. (2019). Analysis of incentives and disincentives for maize in Kenya. Gates Open Res, 3(424), 424. |
[40] | Shuaibu, M. (2020). Impact of Trade Openness and Climate Change on Food Productivity in Nigeria. Foreign Trade Review, 56(2), 165–184. |
[41] | Stock, J. H., Wright, J. H., & Yogo, M. (2002). A Survey of Weak Instruments and Weak Identification in Generalized Method of Moments. Journal of Business & Economic Statistics, 20(4), 518–529. |
[42] |
Tarus, C. B. K. (2019). Maize Crisis: A Position Paper on Strategies for Addressing Challenges Facing Maize Farming In Kenya. East African Scholars Publisher, 2(3), 149-158.
https://easpublisher.com/media/articles/EASJEHL_23_149-158_c.pdf |
[43] | Wangia, C. & Wangia, S. & De Groote, Hugo. (2004). Review of maize marketing in Kenya: Implementation and impact of liberalisation, 1989-1999. |
[44] | Wekesa, Elijah & Mwangi, Wilfred & Verkuijl, Hugo & Danda, K. & De Groote, Hugo. (2003). Adoption of Maize Production Technologies in the Coastal Lowlands of Kenya. CIMMYT: International Maize and Wheat Improvement Center, Miscellaneous Reports. |
[45] | Wokabi, S. M. (2013). Sustainability of Maize production in Kenya. Kenya Agricultural Research Institute, Nairobi, Kenya, 5(2), 2. |
[46] | Zaefarian, G., Kadile, V., Henneberg, S. C., & Leischnig, A. (2017). Endogeneity bias in marketing research: Problem, causes and remedies. Industrial Marketing Management, 65, 39–46. |
APA Style
Nzaka, P. M., Koech, G. J., Bett, H., Owuor, G. (2024). Tradeoffs Between Maize Importation and Reliance on Local Production: A Case of Commercial Maize Millers in Kenya. International Journal of Agricultural Economics, 9(3), 173-184. https://doi.org/10.11648/j.ijae.20240903.15
ACS Style
Nzaka, P. M.; Koech, G. J.; Bett, H.; Owuor, G. Tradeoffs Between Maize Importation and Reliance on Local Production: A Case of Commercial Maize Millers in Kenya. Int. J. Agric. Econ. 2024, 9(3), 173-184. doi: 10.11648/j.ijae.20240903.15
AMA Style
Nzaka PM, Koech GJ, Bett H, Owuor G. Tradeoffs Between Maize Importation and Reliance on Local Production: A Case of Commercial Maize Millers in Kenya. Int J Agric Econ. 2024;9(3):173-184. doi: 10.11648/j.ijae.20240903.15
@article{10.11648/j.ijae.20240903.15, author = {Priscilla Mkambe Nzaka and Gladys Jepchirchir Koech and Hillary Bett and George Owuor}, title = {Tradeoffs Between Maize Importation and Reliance on Local Production: A Case of Commercial Maize Millers in Kenya }, journal = {International Journal of Agricultural Economics}, volume = {9}, number = {3}, pages = {173-184}, doi = {10.11648/j.ijae.20240903.15}, url = {https://doi.org/10.11648/j.ijae.20240903.15}, eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijae.20240903.15}, abstract = {The supply of maize in Kenya has often fallen short of the demand resulting to an influx of cheap maize imports from neighboring countries. Tradeoffs thus arise among commercial maize milling firms whether to import or use locally produced maize in their operations and which alternative maximizes their income. This study aimed to determine the effect of tradeoffs between maize importation and reliance on local production on the income of commercial maize milling firms in Kenya. Data was collected from 106 commercial maize milling firms that produced packaged maize flour. A census of the entire population was employed and a semi-structured questionnaire used to guide personal interviews and online surveys with the respondents. Data was analyzed using descriptive analysis, gross margins and two-stage least square regression. Results indicate that firms that used locally produced maize only were majorly micro to medium-scale, had relatively low-skilled employees, lower production capacity and employed relatively less sophisticated technology. Firms that used locally produced maize only in their operations realized higher incomes and lower cost of procuring maize monthly compared to firms that used both locally produced and imported maize. Additionally, the determinants of firm’s income were the miller’s decision on maize source, total number of employees, total cost of maize, mean monthly sales and mean production costs. Therefore, government policies should be geared towards lowering the cost of procuring maize from both local and import sources. These include reviewing import duties on food grain, streamlining cess collection across counties and improving road infrastructure. }, year = {2024} }
TY - JOUR T1 - Tradeoffs Between Maize Importation and Reliance on Local Production: A Case of Commercial Maize Millers in Kenya AU - Priscilla Mkambe Nzaka AU - Gladys Jepchirchir Koech AU - Hillary Bett AU - George Owuor Y1 - 2024/06/13 PY - 2024 N1 - https://doi.org/10.11648/j.ijae.20240903.15 DO - 10.11648/j.ijae.20240903.15 T2 - International Journal of Agricultural Economics JF - International Journal of Agricultural Economics JO - International Journal of Agricultural Economics SP - 173 EP - 184 PB - Science Publishing Group SN - 2575-3843 UR - https://doi.org/10.11648/j.ijae.20240903.15 AB - The supply of maize in Kenya has often fallen short of the demand resulting to an influx of cheap maize imports from neighboring countries. Tradeoffs thus arise among commercial maize milling firms whether to import or use locally produced maize in their operations and which alternative maximizes their income. This study aimed to determine the effect of tradeoffs between maize importation and reliance on local production on the income of commercial maize milling firms in Kenya. Data was collected from 106 commercial maize milling firms that produced packaged maize flour. A census of the entire population was employed and a semi-structured questionnaire used to guide personal interviews and online surveys with the respondents. Data was analyzed using descriptive analysis, gross margins and two-stage least square regression. Results indicate that firms that used locally produced maize only were majorly micro to medium-scale, had relatively low-skilled employees, lower production capacity and employed relatively less sophisticated technology. Firms that used locally produced maize only in their operations realized higher incomes and lower cost of procuring maize monthly compared to firms that used both locally produced and imported maize. Additionally, the determinants of firm’s income were the miller’s decision on maize source, total number of employees, total cost of maize, mean monthly sales and mean production costs. Therefore, government policies should be geared towards lowering the cost of procuring maize from both local and import sources. These include reviewing import duties on food grain, streamlining cess collection across counties and improving road infrastructure. VL - 9 IS - 3 ER -