Asian Journal of Economics, Business and Accounting
12(3): 1-11, 2019; Article no.AJEBA.51108
ISSN: 2456-639X
Nexus between Technical Efficiency and Financial
Sustainability: Evidence from Small Scale
Sunflower Oil Processing Firms in Tanzania
Anastasia R. Njiku1* and Ganka D. Nyamsogoro2
1
2
University of Dodoma, Tanzania.
Department of Accounting and Finance, Mzumbe University, Tanzania.
Authors’ contributions
This work was carried out in collaboration between both authors. Author ARN designed the study,
performed the statistical analysis and wrote the first draft of the manuscript. Author GDN managed the
analyses of the study, literature searches, reviewed the drafts and finalized the document. Both
authors read and approved the final manuscript.
Article Information
DOI: 10.9734/AJEBA/2019/v12i330150
Editor(s):
(1) Dr. Ivan Markovic, Faculty of Economics, University of Nis, Serbia.
Reviewers:
(1) John Walsh, Vietnam.
(2) Jui-Lung Chen, National Chin-Yi University of Technology, Taiwan.
(3) Pradeep Mishra, Jawaharlal Nehru Krishi Vishwa Vidyalaya, India.
(4) R. Shenbagavalli, India.
Complete Peer review History: http://www.sdiarticle3.com/review-history/51108
Original Research Article
Received 17 June 2019
Accepted 27 August 2019
Published 04 September 2019
ABSTRACT
Studies on technical efficiency and financial sustainability of firms respectively, have captured the
attention of many scholars in both developed and developing economies over several decades.
There are patchy empirical evidences however, that link technical efficiency and financial
sustainability of small scale agro-processing firms in the context of developing economies like
Tanzania. Sunflower Oil Processing Firms are of no exception as the sub-sector is dominated by
small scale firms with no well documented relationship between technical efficiency and their
financial sustainability. This study was set to determine the relationship between technical
efficiency and financial sustainability while controlling for staff productivity. The study used firm
level cross-sectional data collected from 219 sunflower oil processing firms randomly selected in
Dodoma and Singida regions. A Multiple Linear Regression Model was used in analysing the data.
Technical efficiency scores were estimated using Stochastic Frontier Analysis (SFA) model. It was
found that there exists a relationship between technical efficiency and financial sustainability of
_____________________________________________________________________________________________________
*Corresponding author: E-mail: njikuanna@yahoo.com;
Njiku and Nyamsogoro; AJEBA, 12(3): 1-11, 2019; Article no.AJEBA.51108
sunflower oil processing firms in Tanzania. The higher the technical efficiency the more Sunflower
Oil Processing Firms will be financially sustainable. The findings of this study imply that improving
technical efficiency levels is a pre-requisite for financial sustainability of Sunflower oil processing
firms in Tanzania.
Keywords: Technical efficiency; financial sustainability; sunflower oil processing firms.
1. INTRODUCTION
sustainability in Microfinance empirical setting.
This was done following the absence of empirical
evidences on the established link for processing
firms, particularly on the sunflower oil processing
sub-sector in Tanzania context.
Sunflower oil processing firms are ones of
emerging agro-processing industries in Tanzania
with great potentials in providing nutritious and
cholesterol free oil in both rural and urban areas,
apart from creating jobs and income [1]. These
industries are predominant in the central
agricultural corridor of Tanzania in Singida and
Dodoma regions due to the large amount of
sunflower seeds being produced [2]. Sunflower
oil is the most important and popular edible oil
produced in Tanzania since colonial times when
sunflower was introduced from Europe and
America [3].
2. LITERATURE REVIEW
2.1 The
Concept
Sustainability
Financial
Theoretically, sustainability is a wide term and
has been defined by many in several dimensions
depending on user requirements. For instance,
Filene [14] defined sustainability as the ability of
an entity to continue a defined behavior
indefinitely. It further implies the ability of the firm
to meet its goals over the long term. In the same
vein, Nyamsogoro [11] in the Microfinance sector
defined sustainability to mean permanence or the
ability to repeat performance through time. Other
scholars in a business sector like Hubbard [15]
described sustainability as the ability of the firm
to meet the need of its stakeholders without
compromising its ability to meet their needs in
the future. In other words, financial sustainability
means the smooth operation of the firm with the
necessary profitability, having adequate liquidity
to overcome any challenges of bankruptcy. It is
also considered as a necessary condition for
institutional sustainability which is the most
important requirement for any business.
According to Doicui [16] financial sustainability is
a full cost recovery or profit making and is
associated with the aim of building an institution
that can last into the future without continual
reliance on government subsidies or donor
funds. It is the ability of an institution to meet its
operational costs from income generated from
services or products provided and have enough
reserves for recapitalization [17]. In this paper,
the financial sustainability refers to the ability of
sunflower oil processing firm to survive in the
business and be able to meet its operational and
financing expenses from its income generated
thus has enough profit for recapitalization in a
long run. Specifically, it is the ability of a
sunflower oil processing firms to generate
income that exceeds its total costs hence
Despite the predominance of sunflower oil
processing firms in the area where sunflower
seeds are largely grown, many of these firms are
only of small scale [4,5]. They produce low
outputs whose standards are so low to compete
in international markets and hence end up
operating at low profit [6]. It has been reported
that, many agro-processing firms are established
daily across the globe, but of about 85% fail after
only few months of operations since their
establishment [7]. This has been experienced
even in developed countries like the USA, where
approximately 50% of small-scale food
processing firms fail within the first year of
operation [8]. In China, many small processing
firms have a lifespan of less than three years [9].
An even more discouraging situation has been
experienced in South Africa, where the rate of
failure is much higher than others, in which,
between 70% and 80% of the firms fail within
their first few months of operation [10]. One of
the causes could be inefficiency in operations.
This study was meant to determine the
relationship between technical efficiency and
financial sustainability of sunflower oil processing
firms in Tanzania, the link which is scantly found
in the literature.
The study
microfinance
Nyamsogoro
Aziakpono
relationship
of
has been grounded from the
settings, particularly the study by
[11], Kipesha [12], Marwa and
[13].
which
established
the
between efficiency and financial
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Njiku and Nyamsogoro; AJEBA, 12(3): 1-11, 2019; Article no.AJEBA.51108
survival in business for long time. Profitability is
therefore considered as a residual and a proxy
measure of the firm financial sustainability [18].
to produce a given level of output or when a
maximum possible output is produced given a
certain level of input [21,22,23,24,25,26,27].
2.2 Measures of Financial Sustainability
2.4 Measurement of Technical Efficiency
Measurements of financial sustainability in
previous literature have been encored in two
levels of indicators Operational Self-Sufficiency
(OSS) and Financial Self-Sufficiency (FSS)
[11,12,13]. Operational Self-Sufficiency has been
used to assess how far an institution has come in
covering its operating expenses with its operating
income regardless of the source while financial
self-sufficiency measures the extent to which
operating revenue can cover institution’s direct
and indirect costs from its income generation
[17]. Moreover, Financial Self-Sufficiency is
considered to be more appropriate measure of
sustainability as it attempts to show the financial
picture of the firm on unsubsidized basis [11,17].
It is defined as the ratio of adjusted financial
revenue to total expenses [11]. The ratio above 1
indicates sustainability while below 1 indicates
the incapability of the firm to pay all of their
expenses from their own generated income and
therefore not financially sustainable.
Technical efficiency levels/scores estimated from
each specific firm have been used as a proxy
measure of technical efficiency in sunflower oil
processing firm as in previous studies [13,26,27].
Each firm score was obtained as continuous
variable estimated by using the stochastic
frontier model as the ratio of inputs to outputs
factors of production of the firm. This has been
borrowed from the study by Njiku and
Nyamsogoro which simultaneously estimated
and studied the determinants of technical
efficiency of small scale sunflower oil processing
firms in Tanzania using one stage stochastic
frontier Approach [28]. Three inputs were
involved in this relationship (capital, labour and
material costs) and unit processed in litres as
output [28]. It is a measure of effectiveness
transformation of inputs into maximum outputs of
the firms, which provides a more comprehensive
measure of effective use of the firms’ resources
in maximising their output. Optimal output of the
firm implies a high technical efficiency level
attained and hence the financial sustainability of
the firm [13].
=
(1)
2.5 Technical Efficiency and Financial
Sustainability of the Firm
In this paper, Financial Self- sufficiency (FSS) as
a measure of the sunflower oil processing firms’
financial sustainability is a ratio of total expenses
to total revenue. From the profitability theory
point of view profit is considered as the residual,
calculated as an excess of income over
expenditure to mean financial sustainability
[11,19]. In other words, Marriott, Edwards and
Mellett [20] considered profits as what remain
after costs of productions have been paid for. If
profit is considered as a residual, then
profitability can be used as a proxy measure of
financial sustainability since it considers covering
all costs incurred in earning plus any costs
necessary to at least maintain the current level of
operations [20].
Financial sustainability of the firm has been
considered by previous scholars as a function of
many different factors, both internal and external
to firm operations depending on the research
question(s) addressed and data availability. For
instance, the study by Nyamsogoro [11] and
Thela [17] respectively, analysed the relationship
between efficiency and financial sustainability in
the area of Microfinance by looking at various
cost and revenue elements like liquidity ratio,
operating expense ratio and staff productivity
[18]. They employed a traditional approach
(financial ratios) and found that efficiency helps
microfinance institutions to attain their financial
sustainability. It is in this sense that efficiency of
the firm reflects on whether existing resources
have been used effectively as it involves cost
minimisation and income maximisation at a given
level of operation thus have an enduring impact
on the financial sustainability of the firm [27,29].
2.3 The Concept of Technical Efficiency
Efficiency refers to reaching the desired output
with the minimum input or means [17]. It is the
relationship between inputs and output that
seeks to minimize resources costs [18]. The
conception of Technical efficiency is centred on
input- output relationship. Technical efficiency is
achieved when a minimum possible input is used
To add on that, the study by Marwa and
Aziakpono[13] used return on assets, technical
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Njiku and Nyamsogoro; AJEBA, 12(3): 1-11, 2019; Article no.AJEBA.51108
efficiency levels /scores, loan size and deposit
mobilization and cost per loan portfolio as
explanatory variables in predicting financial
sustainability of SACCOs in Tanzania. It has
been reported that, efficiency is positively related
to financial sustainability of the firm [11]. More
efficient firms tend to have relatively lower
expenditure and higher revenue generated per
unit. This is to say that efficiency of the firm
affects the financial sustainability either through
cost reduction or revenue increase or both [11].
Moreover, the study by Mishra, Sahu, Dhekale
and Vishwajith [30] revealed that availability of
inputs and formulation of policy to its
implementation are among of the important
factors for the sustainability.
staff in managing its production, bringing about
profitability and hence the financial sustainability
of the firm. Studies in Microfinance Institutions
revealed that the higher the number of units per
staff would indicate the “firm’s” high efficiency in
utilizing its staff and hence high profitability of the
firm for financial sustainability [11,17]. This study
used staff productivity to test the applicability of
this finding in sunflower oil processing firms’
empirical settings.
3. METHODOLOGY
This study combines both technical efficiency
scores estimated from a Stochastic Frontier
Analysis (SFA) model as the ratio of each firms
‘inputs and output, which formed a column of
continuous variable and staff productivity ratio
from the traditional ratio approach as a measure
of efficiency in explaining the financial
sustainability of sunflower oil processing firms.
The inclusion of staff productivity ratio in the
regression model was to determine the extent to
which sunflower oil processing firms utilize their
staff in maximizing their output for improved
financial sustainability. This was done in an
attempt to control for staff productivity
differences, so that we could ensure the internal
validity of the influence of technical efficiency
levels on the financial sustainability of sunflower
oil processing firms in Tanzania. This has been
grounded following the assertion by Kuhn as
quoted in Nyamsogoro that “devising new
approaches and methodologies may lead to the
discovery of new knowledge” [11,31].
Though these studies provide a good
background to the study at hand, they differ in
terms of their nature of inputs and outputs thus
their findings cannot be generalised across
sectors and sub-sectors due to different contexts.
The Microfinance Institutions deal with the
provision of small-scale financial services to
business firms and individuals while agroprocessing firms, particularly sunflower oil
processing firms deal with the extraction of oil
and seed cakes from sunflower seeds.
2.5.1 Technical efficiency levels/scores
In this paper, technical efficiency was used as a
measure of the effectiveness of transformation of
a set of inputs resources given and technology
into maximum outputs. It was computed from
capital, labour and material costs as inputs
originally measured in Tanzania Shillings (Tshs)
as well as unit processed in liters as output but
were all transformed into their natural logs. Each
firm specific scores were computed as
continuous variables for inclusion in the
regression analysis.
3.1 The Data
A set of primary cross-sectional firm‐level data
was collected from for 219 sunflower oil
processing firms in Dodoma and Singida regions
using both questionnaires and interviews.
Dodoma and Singida regions were purposely
selected as central agricultural corridor and
processing potential of sunflower oil in Tanzania.
The highest produced amount of sunflower
seeds in this area has led to predominance of
sunflower oil processing industries along Dar-es
salaam to lake zones and Arusha highways.
2.5.2 Staff productivity ratio
Efficiency also depends on staff productivity. The
staff productivity ratio captures the overall
productivity of the firms’ total human resources in
maximizing
out
for
improved
financial
sustainability. It is the ratio of the number of units
produced by the number of staff involved. The
ratio provides information on how efficiently the
firm uses its personnel resources in maximizing
their output. In the same vein, the ratio indicates
how well the firm utilizes its staff in general in
enhancing income and reducing the overall
expenditure. It indicates how efficiently the firm is
using its resources and the role played by the
The study used simple random sampling
technique in selecting sunflower oil processing
firms in the area where only firm owners were
purposively selected as targeted respondents.
This was due to the fact that sunflower oil
processing firms are of small- scale in nature
mainly owned and controlled by the individuals.
The owners of the firms were purposely selected
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Njiku and Nyamsogoro; AJEBA, 12(3): 1-11, 2019; Article no.AJEBA.51108
revenue to expenses for each specific sunflower
oil processing firm under the study. The use of
Financial Self-Sufficiency (FSS) as the proxy
measure of financial sustainability in sunflower oil
processing firms was due to the fact that, it
measures the ability of the firm to cover its
operating expenses from the income generated
internally. Financial Self Sufficiency indicates the
ability of the firm to sustain itself in the business
from its generated income. The ratio is
computed as: FSS = Total Revenue /Operating
expenses.
and interviewed as primary sources on important
data particularly on the quantity produced on
liters, price per liter, quantity of raw materials
used and the price per bag, average daily wages
for labour, other operating expenses incurred
daily and the number of personnel in their
respective firms.
To ensure that there is no non-response bias,
randomness was considered by using systematic
simple random sampling technique in selecting
sunflower oil processing firms from the Sampling
Frame of 667 firms that was established from the
updated list of registered food processing firms
by Tanzania Food and Drugs Authority (TFDA),
Small Industrial Development Organisation
(SIDO) in the regions under the study and from
the processors network association known as
Central Zone Sunflower Oil Processors
Association (CEZOSOPA) situated in Dodoma
region. They had equal chances of being
selected due to their similar operating
characteristics. Thus selected sample of 219
firms
was
considered
fairly
adequate
representing other sunflower oil processing
regions due to their similar firm orientation.
Therefore, the methodology is nomothetic which
guaranteed the findings of the study to be
generalized beyond the study sample in the
country since the sample is representative.
The revenue was computed by considering the
number of litres processed and sold in each
sunflower oil processing firm and the price per
litre in a year. Also, all expenses incurred by the
firm for getting the revenue including material
costs, labour costs, water and electricity costs,
rent and taxes were considered in computing the
FSS.
3.2.2 Independent variables
Independent variables were technical efficiency
and staff productivity. The technical efficiency
was
measured
by
technical
efficiency
levels/scores. Staff productivity was introduced
to control for differences in staff productivity
which could influence sustainability apart from
technical efficiency. Both variables, technical
efficiency levels and staff productivity ratio
were estimated from each specific firm as
continuous to measure the role of efficiency
in explaining the financial sustainability of
sunflower oil processing firms as in previous
studies [28].
3.2 Model Specification
Multiple Linear Regression Model was used to
determine the influence of technical efficiency on
the financial sustainability of sunflower oil
processing firms. The model suits in this study
due to the nature of the dependent variable
(Financial Sustainability) which was continuous
and involved more than one explanatory variable
in explaining the relationship.
Dependent and independent variables involved
were continuous and thus suit for Multiple Linear
Regression
Analysis
(MLRA)
model
in
studying the relationship, as expressed in the
general linear regression operational equation
below.
More importantly, the multiple linear regression
models require the establishment of normality
distribution of data as one of the important
assumptions to be met prior to analysis. This
assumption was best checked graphically by
plotting standardized residual values on a
histogram with a fitted normal curve or by
reviewing a Q-Q-Plot or P-P-Plot as well as by
statistical tests using the Kolmogorov-Smirnov
test (K-S) and Shapiro Wilk tests(S-W)
respectively as indicated in section 4.2 of the
empirical results and discussion.
3.2.3 The operational model
( ) =
Where,
+
+⋯+
(2)
E (Yi ) is the mean of the response
variable which was Financial Self-Sufficiency
are independent variables
(FSS) in this case,
involved in the study, which are technical
efficiency levels and staff productivity ratio from
are their respective
each specific firm, and
parameters.
3.2.1 Dependent variable
Financial Sustainability was measured by
Financial Self-Sufficiency (FSS) as the ratio of
5
Njiku and Nyamsogoro; AJEBA, 12(3): 1-11, 2019; Article no.AJEBA.51108
Table 1. Operationalization of the study variables
S/N Technical efficiency
indicators
1
Technical efficiency
levels
2
Staff productivity
ratio
3
Financial self
sufficient (FSS)
Definition and
Expected
measurement
effect on FSS
A continuous variable
+
estimated from SFA as a
ratio of output to input factors
of production for each firm.
Continuous variable,
+
measured as the ratio of unit
produced per staff.
Continuous variable and a
measure of financial
sustainability as the ratio of
Revenue/Expenses.
3.3 Operationalization of the Study
Variables and Their Expected Effects
on Financial Sustainability
(dependent
variable)
Comments
Maximum output
increases the profit and
hence financial
sustainability of the firm.
More units produced per
staff means efficiency
utilisation of staff for
higher profitability.
Ratio >1means Financially
sustainable
Ratio <1 means not
financially sustainable.
hence financial sustainability of the firms.
Likewise, the results in Table 2 depicts that on
average sunflower oil processing firms operate at
a mean technical efficiency level of 53% implying
that there is an opportunity for more
improvement by 47% under a better use of
inputs and technology. Besides, the descriptive
results also revealed that each staff can produce
9700 units of output on average for maximum
profit. However, standard deviation on both
financial self-sufficiency and on technical
efficiency scores was of about 15.5% and 14.9%
respectively indicating that there is variability in
the performance among sunflower oil processing
firms. There is huge variability on staff
productivity among firms under study as
indicated by the standard deviation.
Measurements of variables involved in the study
and their expected theoretical effect on the
dependent variable are indicated in Table 1.
4. RESULTS
4.1 Descriptive Results
The descriptive statistics explaining the overall
distribution of the variables included in the model
as is indicated in Table 2.
The results in Table 2 indicate that on average,
sunflower oil processing firms under the study
are not financially self-sufficient as their overall
ratio is below 1 (0.94). This implies that most of
sunflower oil processing firms are not able to
cover their operating expense from internally
generated income, though they are nearly breakevening, to mean that they are just retaining their
operating capital. Thus any improvement on the
significant variables would mean profitability and
The analysis in Table 2 of descriptive statistics
was extended in Table 3
to disclose the
distribution of firms under the study according to
their Financial self-sufficiency performance ratio
as either they are not financially sustaible
(operate at loss), operate at a break-even point
or at a profit to imply they are financial
sustainability as indicated in Table 3.
Table 2. Descriptive statistics
Variables
Financial Self Sufficiency
Technical Efficiency levels
Staff Productivity ratio
Mean
0.942
0.529
9700.278
Std. Deviation
0.155
0.149
10631.365
N
219
219
219
Table 3. Distribution of firms according to FSS performance ratio
FSS ratio
Below 1
1
Above 1
Total
n
118
10
91
219
6
%
53.8
4.6
41.6
100.0
Njiku and Nyamsogoro; AJEBA, 12(3): 1-11, 2019; Article no.AJEBA.51108
The results in Table 3 indicate that 53.8%
(n=118) of sunflower oil processing firms under
the study operate at a loss since their ratio is
below 1. This implies that expenses of the firms
are higher than revenue generated and thus the
firms are unable to cover their operating
expenses from their income generated and
therefore could be financially unsustainable.
Also 4.6% (n =10) of the firms under the study
are operating at the break-even point since their
FSS ratio is 1 indicating that the revenue
generated is equal to expenses incurred and
thus the firms are neither making profit nor loss.
Their generated revenue is enough to cover
expenses without any surplus, thus are retaining
their operating capital. Moreover 41.6% (n = 91)
of sunflower oil processing firms under the study
are operating at a profit since their FSS ratio is
above 1 indicating that the firm's revenue are
higher than expenses incurred and thus could
be financially sustainable.
efficiency levels and staff productivity, the
contribution which is scantly found in previous
studies. This paper therefore fills this knowledge
gap by using Multiple Linear Regression where
normality of data was presented graphically prior
to the analysis using histogram and P-P-Plot of
regression standardized residual as indicated in
Fig. 1.
The visual results in both histogram and P-P plot
indicate that data concentrate on the centre but a
bit skewed on the left with the scatter plot
indicating a positive gradient.
Likewise,
normality distribution of the data was also
checked by statistical tests with a goodness of fit
test by using the Kolmogorov-Smirnov test (K-S)
and Shapiro Wilk test(S-W) as presented in
Table 4.
Table 4 presents the results from two well-known
tests of normality, namely the KolmogorovSmirnov and the Shapiro-Wilk tests for normality
distribution of the study sample population.
For both tests, the p-value is greater than 0.05
so we would not reject the null hypothesis that
the data is normally-distributed. The multiple
linear regression model summary is indicates in
Table 5.
4.2 Empirical Results and Discussion
This paper aimed to determine the influence of
technical efficiency on financial sustainability of
sunflower oil processing firms in Tanzania, using
a combined measure of efficiency (technical
Fig. 1. Histogram and normal P-P plot
Table 4. Statistical tests of normality
Standardized Residual
Kolmogorov-Smirnova
Statistic
df
Sig.
.063
219
.090
7
Shapiro-wilk test
Statistic
df
Sig.
.988
219 .142
Njiku and Nyamsogoro; AJEBA, 12(3): 1-11, 2019; Article no.AJEBA.51108
b
Table 5. Model summary
Model
R
R square
1
.871
a
.758
Adjusted
R square
.756
Std. The error of the estimate
.07675
Durbinwatson
1.826
a. Predictors: (Constant), Staff Productivity ratio, Technical Efficiency (TE) levels
b. Dependent Variable: Financial Self- Sufficiency (FSS)
terms of quantity of oil in litres produced and sold
lead to high revenue and hence the financial
sustainability of the firm.
The results of the overall linear regression
2
model summary indicate R value of 0.758 to
imply that 75.8% of the variation in the
dependent variable (FSS) was explained by the
independent variables included in the model.
Also, the regression coefficients Table 6 indicate
the joint and individual effect of the technical
efficiency levels and staff productivity ratio
(independent variables) to the financial
sustainability (dependent variable) of sunflower
oil processing firms in Tanzania, respectively.
However, a negative beta coefficient of staff
productivity with the financial sustainability of the
firms under the study implies that any increase in
a number of units produces per staff affect
negatively the financial sustainability of sunflower
oil processing firms in Tanzania. Theoretically, it
would be expected that high staff productivity
ratio would lead to efficient utilisation in
maximising output and hence a high level of
financial sustainability, but the empirical evidence
suggests otherwise. The negative relationship
between staff productivity and financial
sustainability in this study implies that the more
numbers of units produced by a staff the less
financially sustainable the firm is. This implies a
prevalent state where there is a big difference
between units produced as a result of staff
productivity and units actually sold as a result of
market response. Moreover, sunflower oil
processing firms are basically machine intensive
and not labour intensive. This is due to the fact
that the main driver and catalyst of the
production in sunflower oil processing firms are
machines (technology) and not human capital
(staff) as compared to other sub-sectors of
manufacturing. This was also revealed by high
elasticity of capital input (measured by cost of
machines) as it relates positively to the output of
the firms measured in litres of oil processed [28].
The results in Table 6 revealed that both
technical efficiency levels and staff productivity
ratios, jointly predict the financial sustainability of
sunflower oil processing firms in Tanzania due to
a significant F-statistic. Both variables are
highly statistically significant determinants of the
financial sustainability of sunflower oil processing
firms in Tanzania at 5% level of significance with
(p = 0.0001) though with different directions.
Technical efficiency level relates positively to the
financial sustainability of the firm while staff
productivity ratio relates negatively to the
financial sustainability of the firms under the
study.
The positive coefficients for technical efficiency
levels with financial sustainability implies that
when technical efficiency level of the firm
increases the financial sustainability of sunflower
oil processing firms also increases. Thus, the
higher the technical efficiency levels the better
indication for high financial sustainability of the
firms. This further means that input resources,
particularly capital and materials which were
transformed to the optimal output measured in
Moreover, technical efficiency levels were
computed from the input-output relationship of
capital, labour and material to the (quantity) litres
Table 6. Regression coefficients of technical efficiency level and staff productivity to FSS
Model
(Constant)
TE levels
Staff Prod. Ratio
Unstandardized
coefficients
B
Std. error
.417
.022
1.048
.049
-3.108E-006
.000
**
Standard. t
coeff.
Beta
18.657
1.006
21.478
-.213
-4.537
Significant at 5%
8
Sig.
Collinearity statistics
Tolerance VIF
**
.000
.000** .509
1.963
**
.000 .509
1.963
Njiku and Nyamsogoro; AJEBA, 12(3): 1-11, 2019; Article no.AJEBA.51108
Tanzania. Any increase in the technical efficiency
level in sunflower oil processing firms, increases
the profitability of the firm and hence financial
sustainability. Moreover, the role of human
capital (staff) in sunflower oil processing firms,
particularly in handily support to processing
machines and in packaging of oil is important for
improved financial sustainability. These findings
imply the need for government and other
agencies in the sector to create an enabling
environment for sunflower oil processing firms to
have access to improved machines (technology)
and quality materials for enhanced technical
efficiency and reliable markets. These are
prerequisites for financial sustainability of small
scale sunflower oil processing firms in Tanzania.
of oil processed as output. In this capital and
materials contribute significantly to the output,
though with different directions, positively with
capital while negatively related to materials of
production. The negative relation with material
implies that the output of the firm declines with
an increase in materials. This is due to the low
quality of raw materials used in the production,
purchased during harvest season without quality
compromise to avoid shortage during off- season
due to the seasonality nature of the sunflower
seeds. The seeds are not available to processors
throughout the year and if available, are sold
through the middlemen at high cost regardless of
their quality. Capital comprised of the initial cost
of processing machines which are available to all
firms, thus contributed positively with high
elasticity to imply that, it is the most contributing
input factor of production to sunflower oil
processing firms’ production capacity [28]. The
findings are in line with the study by Essmui et al.
[29] and Ngeh [27] respectively, which also found
that technical efficiency influence the financial
sustainability of the manufacturing firms. A
negative relationship between staff productivity
and financial sustainability of the firms was also
observed in the study by Nyamsogoro [11] on the
financial sustainability of Rural Microfinance in
Tanzania.
This is a cross-sectional study limited to studying
the relationship between technical efficiency and
financial sustainability of small scale sunflower oil
processing firms by considering technical
efficiency
scores
and
staff
productivity
(explanatory variables) at one point in time.
Future studies may consider using longitudinal
(time series) data to capture the influence of
these factors with respect to the changes of
these variables over time. Additionally, this study
was limited to only financial sustainability as the
key dimension and a measure of the firm
sustainability to mean institutional sustainability
as used in other sub-sectors [11,12,17]. Future
studies may consider using other measures of
the firm sustainability like mission sustainability
and marketing sustainability.
Therefore, by using a combined measure of
efficiency
as
determinants
of
financial
sustainability of sunflower oil processing firm, it
was observed that technical efficiency levels
from a transformed set of inputs, particularly
capital and materials under a given technology
matters a lot in explaining the financial
sustainability of sunflower oil processing firms in
Tanzania. Also, though staff utilization efficiency
is negatively related to the financial sustainability
of the firm, their role should not be ignored
completely. Firms need to put up strategies to
ensure that there is sufficient market for output
produced at profit marking prices.
5. CONCLUSION
IMPLICATIONS
AND
COMPETING INTERESTS
Authors have
interests exist.
declared
that
no
competing
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