Factors Influencing the Purchase of Energy-Efficient Appliances by Young Consumers in South Africa
Published Online: Oct 24, 2020
Page range: 151 - 166
DOI: https://doi.org/10.2478/fman-2020-0012
Keywords
© 2020 Olawale Fatoki, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Figure 1
The measurement model (Source: Author's own research)
| Construct | Measurement items | Item loading | Cronbach's alpha | Composite reliability | AVE |
|---|---|---|---|---|---|
| Attitude (A) | A1 | 0.782 | 0.739 | 0.875 | 0.636 |
| A2 | 0.826 | ||||
| A3 | 0.805 | ||||
| A4 | 0.776 | ||||
| Subjective norm (SN) | SN 1 | 0.827 | 0.721 | 0.792 | 0.655 |
| SN2 | 0.792 | ||||
| SN3 deleted | 0.479 | ||||
| Perceived behavioral control (PBC) | PBC1 | 0.848 | 0.814 | 0.856 | 0.664 |
| PBC2 | 0.827 | ||||
| PBC3 | 0.769 | ||||
| Moral norms (MN) | MN 1 | 0.899 | 0.727 | 0.881 | 0.737 |
| MN 2 | 0.836 | ||||
| MN 3 | 0.795 | ||||
| Environmental concern | EC1 | 0.848 | 0.792 | 0.884 | 0.655 |
| EC2 | 0.812 | ||||
| EC 3 | 0.769 | ||||
| EC4 | 0.808 | ||||
| Perceived benefits | PB 1 | 0.826 | 0.816 | 0.882 | 0.651 |
| PB 2 | 0.783 | ||||
| PB3 | 0.811 | ||||
| PB4 | 0.806 | ||||
| Informational publicity | IB1 | 0.836 | 0.729 | 0.857 | 0.667 |
| IB2 | 0.799 | ||||
| IB3 | 0.814 | ||||
| Purchase intention (PI) | PI1 | 0.829 | 0.801 | 0.876 | 0.635 |
| PI2 | 0.786 | ||||
| P13 | 0.817 | ||||
| PI4 | 0.753 | ||||
| Purchase behavior (PBe) | PBe1 | 0.899 | 0.725 | 0.873 | 0.711 |
| PBe2 | 0.852 | ||||
| PBe3 | 0.746 | ||||
Discriminant validity (Source: Author's own research)
| Construct | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
|---|---|---|---|---|---|---|---|---|---|
| A | |||||||||
| SN | 0.315 | ||||||||
| PBC | 0.446 | 0.520 | |||||||
| MN | 0.401 | 0.464 | 0.499 | ||||||
| EC | 0.416 | 0.508 | 0.514 | 0.459 | |||||
| IP | 0.602 | 0.643 | 0.508 | 0.511 | 0.606 | ||||
| PB | 0.416 | 0.524 | 0.506 | 0.603 | 0.646 | 0.705 | |||
| P1 | 0.524 | 0.595 | 0.621 | 0.575 | 0.429 | 0.558 | 0.602 | ||
| PBe | 0.493 | 0.508 | 0.482 | 0.445 | 0.518 | 0.526 | 0.599 | 0.530 |
j.fman-2020-0012.apptab.001.w2aab3b7d215b1b6b1ab2b1ab2Aa
| Concept | Survey items | Response category | Authors |
|---|---|---|---|
| Attitude | I consider the purchase of energy-efficient appliances (EEAs) unfavorable (1)/favorable (5) I consider the purchase of EEA undesirable (1)/desirable (5) I consider the purchase of EEA unpleasant (1)/pleasant (5) I consider the purchase of EEA negative (1)/positive (5) | Semantic differential scale | |
| Subjective norms | Most people who are important to me think I should buy energy-efficient ones when it comes to the choice of household appliances If I buy an EEA, this can influence other people to buy an EEA People whose opinions I value would prefer that I purchase EEAs | Five-point Likert scale with 1 being “strongly disagree” and 5 being “strongly agree” | |
| Perceived behavioral control | I can largely decide whether or not to buy an EEA I will have the ability to buy an EEA in the future I am confident that if I want to, I will definitely be able to choose an EEA in the near future | Five-point Likert scale with 1 being “strongly disagree” and 5 being “strongly agree” | |
| Moral norms | It is morally responsible to (other people and/or) the environment for me to conserve the natural resources It is my moral obligation to (other people and/or) the environment for me to save natural resources because they are limited It is my moral obligation to (other people and/or) the environment for me to reduce electricity usage | Five-point Likert scale with 1 being “strongly disagree” and 5 being “strongly agree | |
| Environmental concern | I think the individuals and the society have the responsibility to protect the environment I think the environmental issues are becoming more serious in recent years I take into account environmental consequences while I buy an appliance I think we should live in harmony with the environment for achieving sustainable development | Five-point Likert scale with 1 being “strongly disagree” and 5 being “strongly agree | |
| Informational publicity | Related informational publicity about climate change and the environment promotes my energy-saving behavior The information learned from newspapers, television, and other media influences my energy-saving behavior Informational publicity has encouraged me to buy EEAs | Five-point Likert scale with 1 being “strongly disagree” and 5 being “strongly agree | |
| Perceived benefits | EEAs give me extra value (e.g. economic value, environmental value, and social value) EEAs have high utility EEAs can meet my product requirements I believe EEAs will save costs | Five-point Likert scale with 1 being “strongly disagree” and 5 being “strongly agree” | Wang, et al. (2017) |
| Intention to purchase | In the future, I am willing to buy EEAs if I need to have home appliances In the future, I plan to buy appliances with better energy efficiency In the future, I intend to buy appliances with better energy efficiency | Five-point Likert scale with 1 being “strongly disagree” and 5 being “strongly agree” | Wang, et al. (2017) |
| Purchase behavior | I have purchased EEAs in the past I currently use EEAs Purchasing EEAs makes me feel that I have played a great part in helping the environment | Five-point Likert scale with 1 being “strongly disagree” and 5 being “strongly agree” |
Path coefficient and T-statistics (Source: Author's own research)
| Hypothesized path | Standardized Beta | T-statistics | Decision |
|---|---|---|---|
| H1: A to P1 | 0.136 | 3.042 | Accepted |
| H2: SN to PI | 0.029 | 1.129 | Rejected |
| H3: PBC to PI | 0.188 | 3.886 | Accepted |
| H4: MN to P1 | 0.135 | 3.648 | Accepted |
| H5: EC to PI | 0.117 | 2.912 | Accepted |
| H6: IP to PI | 0.128 | 3.321 | Accepted |
| H7: PB to P1 | 0.148 | 2.991 | Accepted |
| H8: PI to PBe | 0.253 | 3.385 | Accepted |
Descriptive statistics (Source: Author's own research)
| Construct | Mean | Standard deviation | Kolmogorov–Smirnov |
|---|---|---|---|
| Attitude | 4.10 | 1.06 | 0.175 |
| Subjective norms | 2.75 | 1.18 | 0.102 |
| Perceived behavioral control | 3.80 | 1.03 | 0.127 |
| Environmental concern | 4.10 | 1.05 | 0.133 |
| Moral norms | 3.98 | 1.15 | 0.127 |
| Perceived benefits | 4.15 | 1.09 | 0.121 |
| Informational publicity | 4.02 | 1.02 | 0.125 |
| Intention | 4.05 | 1.01 | 0.127 |
| Behavior | 3.10 | 1.09 | 0.116 |