1. Introduction
This paper examines the relationship between gender and team identity in a social dilemma context. The social dilemma has proven to be a useful metaphor for analyzing cooperative behavior in situations of conflict between multiple interdependent actors who share a common resource [
1,
2]. Social dilemmas are characterized by a conflict between immediate self-interest and long-term collective interest [
1,
3,
4]. Considering that “sustainability refers to longevity, continuity, and capability to be maintained” [
5] (p. 393), cooperative behaviors are positively related to organizational sustainability (i.e., organizational performance or economic sustainability), while self-interested behaviors are harmful. In fact, self-interested behaviors (i.e., free-riding) have been identified as one of the most damage dysfunctional behaviors for economic sustainability. If agents free-ride, suboptimal outcomes will be achieved at the organizational level. If all agents behave in this manner, then the collaboration itself is destined to fail and organizational performance will not be sustained. Therefore, understanding which factors contribute to increasing and maintaining cooperation is critically important for organizational sustainability [
5,
6,
7].
This study focuses on social dilemma contexts where team members periodically receive feedback about teammates’ contributions and earnings. We try to replicate current organizational contexts where companies disclose information related to agents’ performance, contributions, awards, and rewards or earnings [
8]. The presence of feedback facilitates the emergence of free-riding behaviors. Free-riding can be the result of greed and fear inequalities. Greed is the temptation to free-ride when others cooperate. Fear is the motivation to avoid being exploited by others that free-ride [
9]. Information about teammates’ contributions and earnings allows individuals to evaluate if they are suffering inequalities, that is, how fairly they are treated by teammates [
10]. If individuals observe that those teammates are free-riding, they may experience fear. Consequently, they can decide to behave as free-riders [
11,
12,
13]. Therefore, if individuals respond to free-riding when suffering fear, cooperation sustainability will be reduced not only directly by the first free-riders, but also indirectly by affecting cooperation of others on the team [
14,
15].
Researchers have analyzed how to overcome free-riding behaviors in social dilemma contexts. One solution to the problem is to change the incentive and eliminate the dilemma [
16]. This is what organizations do when designing formal control systems such as incentives or penalties and when using in different ways formal control systems [
17]. Another solution is to create groups that foster cooperative norms instead of free-riding behaviors. This is what informal control systems try to do. Informal controls are not consciously designed and include unwritten norms, loyalties, shared values, organizational culture, commitment, or team identity. Team identity has been highlighted as an informal control mechanism that affects agents’ behavior [
18,
19]. Free-riding can be reduced if organizations make the team more meaningful for individuals (i.e., through team identity) [
20,
21,
22]. Along this line, there is consensus about the negative effect of team identity on free-riding behaviors and the positive effect on cooperation when agents face social dilemmas [
19,
20]. Nevertheless, employees’ features (e.g., age, gender, background) [
23] and also employees’ attitudes (e.g., readiness to change, commitment) [
24] can explain differences in employees’ behavior in organizational and team contexts. In the present paper, we focus on gender for two reasons. First, women presence is increasing in work contexts. Second, previous research suggests that social aspects do not influence men and women in the same way, and mixed results can be found when analyzing the relationship between team identity and gender [
25,
26,
27]. Brown-Kruse and Hummels [
25] found that men react more strongly to social identity than women in a multiperiod public goods provision game. In contrast, replicating Brown-Kruse and Hummels [
25], Cadsby and Maynes [
28] found no differences according to gender. Solow and Kirkwood [
26] suggest “the effects of gender and group identity on behavior are more complicated, involving the nature of the social groups involved”.
This paper seeks to contribute to this line of research by analyzing agents’ behavior in a multiperiod prisoner’s dilemma game, which is characterized by two features. First, we mixed men and women in teams, replicating current work settings where the presence of women in organizations and, therefore, in teamwork contexts cannot be ignored [
29,
30]. Therefore, we avoided the creation of all-male or all-female groups. Second, we provided information about agents’ contributions and earnings after each decision, allowing for the detection of free-riding behaviors and, therefore, the appearance of fear. We are interested in free-riding behaviors because of fear considering that they are harmful for cooperation sustainability and considering the still current debate about how team identity affects fear in social dilemma context [
9,
31,
32]. Previous studies suggest mixed and, sometimes, incongruent agent responses to fear, depending on their level of team identity. For instance, Simpson [
9] suggests that team identity does not increase cooperative behaviors when agents suffer fear. However, another line of research suggests that when team identity is present, agents lose the sense of ingroup competition; therefore, they will decrease the level of free-riding behavior, even when feeling fear [
20,
31].
In this paper, we seek to contribute to the debate about how team identity influences agents’ responses to fear in social dilemma contexts, suggesting that agents’ responses will be different depending on gender. We follow research that shows that women and men react differently to inequity, risk, and competition [
33,
34]. While competition is important for men, women are more concerned about inequity and risky situations than men. Integrating social identity theory [
20,
35] with gender literature [
26,
36,
37], the present study suggests that team identity decreases men’s reactions to fear, but not women’s. Accordingly, we suggest that the effect of team identity on free-riding and cooperation sustainability differs between the two genders.
To test our hypotheses, we conducted a 2 × 2 (identity × gender) (between subject) × 30 (periods) (within subject) experiment with female and male participants randomly assigned to three-person teams [
6]. Our results show that team identity decreases the negative fear reaction among men; however, no effects were found in this regard for women. As a result, team identity only increases cooperation sustainability in men but not in women.
Results from this study enhance our understanding of how team identity, a tool that can be used as an informal control system, and gender, one specific feature of employees, interact when influencing agents’ behavior in a social dilemma situation. First, we aim to contribute to the line of research that analyzes the effects of gender and social identity on agents’ behavior and which suggests that this relationship is not straightforward [
25,
26,
28,
37]. Contrary to Cadsby and Maynes [
28] but in line with Brown-Kruse and Hummels [
25], our results show that men react more strongly to social identity than women. We contribute to this line of research by suggesting that as men worried more about competition and women more about risk and inequity, increased free-riding behaviors in response to fear differ between women and men. Second, we seek to contribute to informal control mechanisms research by understanding situations and contexts where social identity effects are not found. Despite the existing consensus about the positive effect of social identity on team members’ cooperative behavior, less is known about whether gender differences matter [
36,
37]. Organizations may consider employees’ features and attitudes to understand how employees react to organizational tools and changes [
23,
24]. The present paper highlights the importance of gender differences when designing control systems, due to the increased presence of women in work contexts and due to different gender responses to team identity.
The remainder of the paper is organized as follows. In the next section, we develop the hypotheses. We outline the design of the experiment in the third section. We describe the results in the fourth section, and finally we discuss the findings and limitations of the study.
4. Results
4.1. Descriptive Statistics
Table 1 reports descriptive statistics for fear, early fear, middle fear, and late fear.
Table 1 also reports cooperation sustainability, cooperation, early cooperation, middle cooperation, and late cooperation.
Figure 2 and
Figure 3 report fear and cooperation sustainability variables for all four conditions.
The fear variable represents the number of times an agent free-rides following a round in which their two teammates free-rode. The highest level of fear response is found among men and in the weak team identity condition (M = 0.798, SD = 0.170), followed by women and the strong team identity condition (M = 0.724, SD = 0.230), then women and the weak team identity condition (M = 0.708, SD = 0.280). The lowest level of fear is found among men and in the strong team identity condition (M = 0.330; SD = 0.378). Related to early, middle, and late fear, the highest level of early fear is found among men and in the weak team identity condition (M = 0.765, SD = 0.363), followed by women and the weak team identity condition (M = 0.593, SD = 0.432), then women and the strong team identity condition (M = 0.519, SD = 0.368). The lowest level of early fear is found among men and in the strong team identity condition (M = 0.270; SD = 0.315). The highest level of middle fear is found among men and in the weak team identity condition (M = 0.871, SD = 0.132), followed by women and the weak team identity condition (M = 0.691, SD = 0.326) and then women and the strong team identity condition (M = 0.594, SD = 0.347). The lowest level of middle fear is found among men and in the strong team identity condition (M = 0.403; SD = 0.455). Finally, similar levels of late fear were found among men and in the weak team identity condition (M = 0.843; SD = 0.188) and women and the strong team identity condition (M = 0.835, SD = 0.222). The lowest level of late fear was found among men and in the strong team identity condition (M = 0.429; SD = 0.432), followed by women and the weak team identity condition (M = 0.725, SD = 0.302).
The cooperation variable measures the extent to which agents choose a high level of resources (i.e., cooperation) instead of a low level of resources (i.e., free-riding) over different periods. The lowest level of cooperation is found among men and in the weak team identity condition (M = 0.460, SD = 0.317), followed by women and the weak team identity condition (M = 0.536, SD = 0.266), and women and the strong team identity condition (M = 0.598; SD = 0.253). The highest level of cooperation is found among men and in the strong team identity condition (M = 0.687, SD = 0.302). The early cooperation variable measures the extent to which participants choose a high level of resources instead of a low level of resources over the 10 initial periods. The lowest mean for early cooperation is found among men and in the weak team identity condition (M = 0.644, SD = 0.303), followed by women and the strong team identity condition (M = 0.663, SD = 0.211). Similar levels of early cooperation are found among women and the weak team identity condition, and men and the strong team identity condition (M = 0.715, SD = 0.280; M = 717, 0.261, respectively). The middle cooperation variable measures the extent to which participants choose a high level of resources instead of a low level of resources between periods 11 and 20. The lowest mean for middle cooperation is found among men and in the weak team identity condition (M = 0.450, SD = 0.403), followed by women and the weak team identity condition (M = 0.515, SD = 0.299), and then women and the strong team identity condition (M = 0.674, SD = 0.296). The highest level of cooperation was found among men and in the strong team identity condition (M = 0.748, SD = 0.337). The late cooperation variable measures the extent to which participants choose a high level of resources instead of a low level of resources between periods 21 and 30. The lowest mean for late cooperation is found among men and in the weak team identity condition (M = 0.288, SD = 0.320), followed by women and the weak team identity condition (M = 0.377, SD = 0.365), and then women and the strong team identity condition (M = 0.458, SD = 0.322). The highest level of cooperation was found among men and in the strong team identity condition (M = 0.596, SD = 0.401).
Finally, cooperation sustainability represents the tendency along periods. A negative ratio means that cooperation is lower in last periods than in first periods. We found a negative ratio among the four conditions. However, the lowest negative ratio is found among men and in the strong team identity condition (M = −0.241, SD = 0.557), followed by women and the strong team identity condition (M = −0.390, SD = 0.588), and women and the weak team identity condition (M = −0.537; SD = 0.533). The highest negative ratio of cooperation sustainability is found among men and in the weak team identity condition (M = −0.579, SD = 0.580).
4.2. Hypotheses Testing
Hypothesis 1 stated that the effect of team identity on free-riding response to fear would be lower among women than men. We used an ANOVA model in which the dependent variable was fear variable, and the independent variables were gender and team identity. Results in
Table 2 showed a statistically significant and positive effect for team identity on fear (F = 10.091,
p = 0.002), a statistically significant effect for gender on fear (F = 4.527,
p = 0.038), and a statistically significant interaction effect (team identity × gender) on fear (F = 11.517;
p = 0.001). Therefore, hypothesis 1 is supported.
In order to test the robustness of our results, we also analyzed hypothesis 1 with simple effect analysis (see
Table 3). Results showed no significant difference in free-riding responses to fear for women, between the weak and strong team identity conditions (t = −0.168;
p = 0.868). Results showed significant differences in free-riding response to fear for men, between the weak and strong team identity conditions (t = 4.229;
p < 000). As expected, women developed similar levels of free-riding response to fear indistinctly of team identity strength (weak vs. strong: 0.708 vs. 0.724), while men developed different levels of free-riding response to fear depending on the strength of team identity (weak vs. strong: 0.798 vs. 0.330). Therefore, simple analysis results are in line with the findings of the ANOVA model, supporting Hypothesis 1.
Hypothesis 2 stated that the effect of team identity on cooperation sustainability would be higher among men than women. We developed two analyses. First, we used an ANOVA model in which the dependent variable was cooperation, and the independent variables were gender and team identity. Results in
Table 4 showed only a statistically significant and positive effect for team identity on cooperation (F = 5.265,
p = 0.024). However, no statistically significant effect was found for gender (F = 0.011;
p = 0.917), and no interaction effect (team identity x gender) was observed on cooperation (F = 1.701;
p = 0.196). Furthermore, we developed a simple effect analysis (see
Table 5). Results showed no significant difference in cooperation for women, between the weak and strong team identity conditions (t = −0.800;
p = 0.428). Results showed significant differences in cooperation for men, between weak team identity and low team identity (t = −2.237;
p = 0.033). As expected, women developed similar levels of cooperation indistinctly of team identity strength (weak vs. strong: 0.536 vs. 0.598), while men developed different levels of fear responses depending on the strength of team identity (weak vs. strong: 0.460 vs. 0.687).
We analyzed the effect of team identity and gender on cooperation sustainability, and results are in line with previous results about cooperation variable. We used an ANOVA model in which the dependent variable was cooperation sustainability, and the independent variables were gender and team identity. Results in
Table 6 show only a statistically marginally significant and positive effect for team identity on cooperation sustainability (F = 3.776,
p = 0.056). However, no statistically significant effect was found for gender (F = 0.182;
p = 0.670), and no interaction effect (team identity x gender) was observed on cooperation (F = 0.592;
p = 0.444). Therefore, this ANOVA analysis did not support hypothesis 2. We also developed a simple effect analysis (see
Table 7). Results showed no significant difference in cooperation sustainability for women, between the weak and strong team identity conditions (t = −0.856;
p = 0.397). Results showed marginally significant differences in cooperation for men, between weak team identity and low team identity (t = −1.820;
p = 0.078). Therefore, simple effect analysis support hypothesis 2, for cooperation variable and marginally for cooperation sustainability variable.
4.3. Supplemental Analysis
We used early, middle, and late fear and cooperation variables, and post-experiment questionnaire data to provide support to the theory underlying our results.
4.3.1. Time Effect: Early, Middle and Late Fear Responses
To further develop our hypothesis 1, we ran pairwise comparisons between conditions (
t-test analysis) for early fear, middle fear, and late fear variables. First, among men, between the weak and strong team identity conditions (
Table 8a), we found statistically significant differences for early, middle, and late fear (t = 3.345,
p =0.003; t = 3.107,
p = 0.008; t = 3.235,
p = 0.004). However, among women (
Table 9b), we found no statistically significant differences for early fear, middle fear, or late fear (t = 0.435,
p =0.669; t = 0.673,
p = 0.513; t = −1.176,
p = 0.249). Therefore, these results are in line with previous hypothesis 1 analysis.
Figure 4 and
Figure 5 report the evolution of free-riding response to fear (early, middle, and late) for men and women, respectively, depending on their strength of team identity.
4.3.2. Time Effect: Early, Middle, and Late Cooperation
We ran pairwise comparisons between conditions (
t-test analysis) for early cooperation, middle cooperation, and late cooperation variables, to examine the effect of team identity along periods, that is, to give greater support to hypothesis 2. First, among men, between the weak and strong team identity conditions (
Table 9a), we found no statistically significant differences for early cooperation (t = −0.79,
p = 0.436). However, we found statistically significant differences for middle and late cooperation (t = 2.423,
p = 0.022; t = −2.664,
p = 0.011). Therefore, the results suggest that the effect of team identity on men is not automatic, but rather needs time in order to influence men’s behavior. We suggest that this delay in influencing cooperative behaviors among men might explain the non significance of the ANOVA model with regard to supporting hypothesis 2. However, among women (
Table 9b), we found no statistically significant differences for early, middle, or late fear (t = 0.714,
p = 0.479; t = −1.765,
p = 0.085; t = −0.787,
p = 0.436). Therefore, results support the positive effect of team identity on cooperation sustainability for men but not for women.
4.3.3. Post-Experiment Questionnaire Data
We used post-experiment questionnaire data to support the theory underlying free-riding response to fear and differences between men and women. We used two questions in the post-experiment questionnaire (see
Appendix C) to capture the frequency with which agents think about following teammates’ free-riding behaviors, and, therefore, the frequency with which agents think about engaging in punishment behaviors (free-riding) in response to fear. We developed a simple effect analysis and compared the responses of men and women within the weak and strong team identity conditions.
First, we ran pairwise comparisons between men and women (
t-test analysis) within the weak team identity condition, for the two items (
Table 10a). We found no statistically significant differences for item 1 and item 2, between men and women (t = −0.743,
p =.462; t = −0.741,
p =.464). Therefore, men and women think about developing similar levels of punishment when they work in teams with a weak identity. Second, we ran pairwise comparisons between men and women (
t-test analysis) within the strong team identity condition, for the two items. We found statistically significant differences for item 1 (t = −2.032,
p =0.049) and marginally statistically significant differences for item 2 (t = −1.807,
p =0.079). Therefore, team identity changes the thoughts of men and women related to punishing behaviors towards their teammates. Women think more about following free-riders than men (item 1: women 3.47 vs. men 2.65; item 2: women 3.26 vs. men 2.48).
5. Discussion
This study analyzed the interaction effect of gender and team identity on free-riding behaviors because of fear and cooperation sustainability. Untangling the link between gender, team identity, and economic behavior when agents face social dilemma situations is not straightforward [
26]. Previous research found mixed results when analyzing the effects of team identity on free-riding response to fear [
9,
43]; however, we argue that this relationship depends on gender characteristics. Differences in three domains between men and women (inequity, risk preferences, and reaction to competition) [
33,
34] might explain the different effect of team identity on free-riding responses to fear and cooperation sustainability.
Our results show a significant interaction effect of gender and team identity on free-riding response to fear. Specifically, they show that the effect of team identity on free-riding response to fear is significant in the case of men, but not in the case of women. This result is consistent with our first hypothesis and extends the study by Simpson [
9]. Simpson [
9] argued that team identity does not affect fear responses because the decision to cooperate only achieves one of the two goals when team identity is strong. Cooperation when other team members free-ride maximizes group outcomes, but defection is what minimizes ingroup inequities. We found the effect suggested by Simpson [
9] in women, but not in men. We provided different explanations for this different effect. For women it is important to avoid fear and then reducing inequities in the group is key. Therefore, to decide to free-ride when agents are affected by fear situations minimizes ingroup inequities. Whereas for men, maximizing group outcomes is more important [
34,
44]. Second, previous findings suggest that men will be motivated to free-ride when others do so because of competitive motives, whereas women are more motivated by risk preferences. Team identity changes the focus of competition from within the group to outside the group, but it does not affect risk perception [
20]. This suggests that team identity will affect decisions to cooperate when suffering fear in the case of men, but not in the case of women. Additionally, our results from the post-experimental questionnaire show that women and men decide to follow the free-riding behavior of other teammates to the same extent when team identity is weak. However, when team identity is strong, women are more willing to follow that behavior than men. These results are consistent with our expectations.
Considering that responding with free-riding behaviors to fear situations will negatively impact cooperation sustainability, we might expect an interaction effect for gender and team identity on cooperation sustainability. However, although the simple effect analysis shows that team identity only significantly affects cooperation in the case of men, and marginally affects cooperation sustainability, our results show that the interaction effect is not significant for cooperation or for cooperation sustainability. We provided an explanation related to time. The effect of team identity on cooperation among men is not immediate. As shown by our supplemental analysis, for men, the effect of team identity is significant in the last 20 periods, but not in the first 10. Another explanation might be that the effect of team identity on greed responses could compensate for the effect of team identity on fear responses. Future research could extend our study to other settings that boost the greed component of the social dilemma.
6. Conclusions
In work context where feedback information facilitates the detections of free-riding behaviors, our findings show no effect for team identity on free-riding response to fear among women. However, we found that team identity affects men’s reaction by decreasing their level of free-riding responses to fear. Although considering that lower levels of free-rider responses to a fear situation will increase cooperation along periods, the results of this study suggest that the effect of team identity on cooperation among men is not immediate.
However, it should be noted that this study presents several limitations. Because of our experimental method, this study has limited generalizability to real-world settings where other variables may influence employee behaviors. In our experiment, team members could not interact or communicate. Although there are real work situations in which workers cannot interact with and monitor each other because of distance, for instance, they normally can communicate; and communication is positively related to cooperation [
57]. Future research should test our predictions and seek to replicate our findings in real contexts. In addition, we did not have the opportunity to distinguish between the different motives that lead participants to defect (inequity preferences, risk preferences, or competition). Future research could analyze these mediating variables and other control variables that could also explain the differences found in our study.
This study has implications for social dilemma, gender, and informal control mechanism literature as well as practical implications for organizational sustainability. Considering that sustainability at the organizational level depends on the employee´s contribution to organizational and group goals, we contribute to answer how to create institutions that foster cooperative norms for disabling prisoner’s dilemmas that are always part of business and society, by the use of informal control systems (e.g., team identity) [
5]. In addition, we are contributing to the debate about the interaction between gender and team identity [
27,
37]. Our results are in line with Brown-Kruse and Hummels [
25] and Solow and Kirkwood [
26], but contrary to Cadsby and Maynes [
28]. In the former, agents played a public goods game and had to make a binary decision (full or nothing), while, in the latter, agents had to make a continuous decision. Moreover, in the studies conducted by Brown-Kruse and Hummels [
25] and Solow and Kirkwood [
26], no feedback was provided about teammates after each decision, but instead group information was made available. Similar feedback can be found in Cadsby and Maynes [
28]. However, having a binary decision facilitates the interpretation of group feedback information and, therefore, facilitates the detection of free-riding. Along this line, we suggest that our setting is closer to that used by Brown-Kruse and Hummels [
25] and Solow and Kirkwood [
26] in their studies, and for this reason our results are in line, that is, men react more strongly to social identity than women. Furthermore, this study contributes to the debate about how team identity affects cooperation by extending the study of Simpson [
9]. Simpson [
9] suggests that team identity influences greed but not fear responses, because only when agents respond to the greed component with cooperation do they attain the two expected goals of social identity (maximizing group goals and reducing inequities). Our results show that team identity does not affect fear responses in the case of women, but it does affect them in the case of men. Finally, considering that the presence of women in organizations cannot be ignored [
29,
30,
58], we have responded to recent calls to examine how new forms of work organization, such as team structures, and management control systems may adapt to gender differences [
29]. We are contributing to this line of research by suggesting that team identity does affect men and women differently. Therefore, organizations should adapt managerial practices, formal and informal, according to gender.