1. Introduction
Over the last decade, the importance of inter-organisational collaboration has been promoted by businesses, policymakers, and researchers since it facilitates organisations to develop strategic responses and to be competitive by going beyond their traditional silo-based approaches (
Le Pennec and Raufflet 2018;
Nahapiet 2009). This promotion of inter-organisational collaboration is due to the fact that modern organisations are interested in employing various collaboration provisions to proficiently handle their current business operations and venture into novel processes, strategically upholding their competitive standing in the ever-evolving business environment (
Prasad et al. 2012). Inter-organisational collaboration is embraced as an approach for responding to complex societal challenges or wicked problems such as sustainable urban development, disaster risk management, climate change adaptation, eradicating poverty and homelessness, global pandemics, etc. (
Ray-Bennett et al. 2020;
United Nations Office for Disaster Risk Reduction 2019;
Lagreid and Rykkja 2015). In such a collaborative approach, organisational coordination, as a basic element and the prior stage of collaboration, and communication are vital through governance structures (
Xue et al. 2020;
Basco-Carrera et al. 2017). As an example, governance structures with hierarchical features and top-down coordination are considered a fundamental hindrance in inter-organisational collaboration, leading to conflicts among stakeholders and eventually to potential failures (
Malalgoda et al. 2013;
Taylor 2016). Furthermore, the study by
Prasad et al. (
2012) indicates that organisational structures strongly influence inter-organisational collaboration. Therefore, the governance structures that can facilitate collaboration play a key role in inter-organisational collaboration to solve wicked problems in an innovative way (
Lagreid and Rykkja 2015). However, existing studies do not adequately address the connections between inter-organisational governance structures and the collaboration level.
Hence, there is a need to investigate how the best features of inter-organisational collaborative structures can be combined to support stakeholder collaboration across boundaries, sectors, and administrative levels. Moreover, although existing studies discuss various inter-organisational collaboration arrangements and their effectiveness in specific contexts, they do not provide a general view of suitable inter-organisational collaborative structures and features to enhance collaboration. In addition, the connection between inter-organisational structural types and features and their influence on collaboration is not well established. Therefore, this study intends to answer the research question, “What are the types of inter-organisational governance structures and features necessary to facilitate fruitful collaboration among various stakeholders?”. This study further analyses the findings to understand how these features influence stakeholder collaboration.
4. Analysis and Discussion
In essence, inter-organisational collaboration can be covered by two dimensions: vertical integration and horizontal integration. Vertical integration is essential for cross-level collaboration, and horizontal integration is essential for the cross-sector and cross-boundary collaboration that can be seen among different administrative boundaries. Therefore, vertical and horizontal integration are the main variables supporting inter-organisational collaboration.
The vertical integration concept is applicable in structural arrangements where only verticality or centrality prevails. Therefore, vertical interaction is not applicable in flat networks and isolated organisations where centrality is absent. Vertical coordination can be seen among hierarchical structures that facilitate top-down or bottom-up coordination, which is considered in this analysis to be a “one-way interaction”. However, this is seen as low vertical integration since the proper combination of top-down and bottom-up coordination can lead to an optimum vertical integration that supports balanced top-down and bottom-up approaches in decision-making (
C40 Cities Climate Leadership Group 2020). Hierarchical structures can also facilitate balanced top-down and bottom-up approaches with intermediate-level interaction in the hierarchy, and this study calls this feature a “two-way interaction”. On top of all the structural features, if the direct interaction among various administrative levels in the hierarchy facilitates a hierarchical structure, this study calls this feature a “unified vertical integration” —this feature can be seen in heterarchy structures (
Cumming 2016)—which promotes high vertical integration according to the argument of
Jiren et al. (
2018), who stated that effective vertical integration should connect all the administrative levels within governance rather than interacting with the levels just above and below immediate administrative levels. Additionally, where the vertical connection among all administrative levels is absent, the availability of boundary organisations to create vertical connections can also be considered an important factor in strengthening vertical integration since boundary organisations can fulfil this requirement by connecting different administrative levels. However, this study argues that the vertical integration level in this structural arrangement is equal to the two-way hierarchy structural vertical integration level since both facilitate indirect interaction among different levels in the hierarchical structure. Vertical integration varies from low to high based on the type of organisational structure, as shown in
Figure 3.
The horizontal integration variables depend on the horizontal connections between different sectors, different actors, and different administrative boundaries. Boundary organisations play an important role in helping to connect different types of organisations across sectors and boundaries. Therefore, the availability of boundary organisations is important in facilitating horizontal integration where direct connections are not available. The heterogeneity of organisations in collaboration is seen as a crucial factor in bringing innovative solutions to solve complex problems through collaboration. Collaboration across different sectors, actors, and different administrative boundaries can boost heterogeneity in collaboration. Therefore, the high heterogeneity of collaborative organisations can be seen as a vital indicator of a successful high level of horizontal integration. The heterogeneity of a governance arrangement can be boosted by keeping thematic subgroups in an inter-organisational collaborative arrangement rather than having similar types of organisations within a collaborative group (
Therrien et al. 2019). In general, silo-based organisational arrangements lack horizontal integration (
Scott and Gong 2021) and, in contrast, a networked organisational arrangement facilitates horizontal integration by coordinating with various sectors and, additionally, with sectors across boundaries. Therefore, this study concludes that the “silo” term represents no/low horizontal integration and the “networked” term represents high horizontal integration.
The leadership feature is not discussed separately under each integration criterion since leadership can be seen as a common factor in increasing vertical and horizontal integration in governance arrangements. However, it is important to note that, as an exception in collaborative arrangements, the self-governance network does not have any leadership within it.
Figure 3 presents a framework that captures the vertical and horizontal integration characteristics of an organisational structure based on identified structural features that help us to understand how they lead to a low, medium, and high level of collaboration. Horizontal and vertical integration are considered in the X and Y axes, respectively, to develop the framework. The vertical integration varies from low to high, through the Y axis, based on the features represented in the framework and named “no vertical interaction”, “one way interaction”, “two-way interaction”, and “unified vertical integration” for the reasons discussed above. Similarly, the horizontal integration varies from low to high, through the X axis, based on the features represented in the framework and is named “silo” and “networked” due to the reasons discussed above.
Various organisational structural types that promote coordination can be mapped to the segments in the framework in terms of supporting collaboration. Therefore, the framework can be used to place each structural type in one of the segments based on its characteristics and, as a result, the connections between its structural type, the characteristics of the structural arrangements, and the level of collaboration can be understood. Furthermore, the “silo” column represents various levels of vertical integration associated with a silo approach where no horizontal collaboration can be seen. Similarly, the “network” column represents the horizontal integration aspect associated with various vertical integration at each level. Since the silo approach reflects a pure vertical integration approach, the “silo” column can be seen as a basis for the development of the “networked” column, as discussed below.
Segment 1 in the framework indicates no vertical and horizontal coordination, which leads to isolated organisations whereby such organisations do not consider collaboration, which can be seen as a market structure. Segment 2 represents pure horizontal coordination and no vertical coordination. In this stage, there is no control, centrality, or hierarchy prevailing among organisations. Therefore, this is considered a self-governance network in which collaborative members have the same powers and equality in collaborative initiation.
Segment 3 represents one-way vertical coordination among intermediate levels, presumably, and no horizontal coordination. General hierarchical structures fall in this category since this structure hinders horizontal coordination and facilitates one-way coordination, such as pure top-down or bottom-up among intermediate levels. Segment 4 represents the horizontal coordination feature in addition to the features of segment 3, which means that the organisations in the hierarchical arrangement are experiencing horizontal collaboration, forming a network structure in any of the administrative levels, which can be one or more levels; the hierarchy structure prevails as the most prominent. This study calls this structure a hierarchy with a supplemental network.
Segment 5 represents the two-way vertical coordination among intermediate levels and no horizontal coordination. Hierarchical structures with balanced top-down and bottom-up approaches can fall in this category since this structure hinders horizontal coordination and facilitates two-way coordination, such as pure top-down or bottom-up among intermediate levels. Therefore, the different administrative levels in the hierarchy structure attain interconnection indirectly. The intermediatory level organisations in the hierarchy undertake the role of boundary spanning, and any other boundary-spanning organisations can indirectly connect the top and bottom administrative levels. This indirect coordination among the various administrative levels with the direct coordination among intermediatory levels creates indirect interaction in the hierarchical structure. The study names this structure an “indirectly integrated hierarchy”. Similarly, segment 7, an advanced version, in terms of vertical integration, of segment 5, provides high vertical integration of hierarchy with direct coordination among various administrative levels, and this study names the structure with these characteristics “directly integrated hierarchy.”
Segment 6 represents the horizontal coordination features in addition to the features of segment 5. This study argues that lead organisation networks and network administrative organisation-governed organisational networks can be placed in this category with the following justifications: (1) both networks have centralised features that represent hierarchical features (
Borgatti et al. 2009); (2) the networks are highly brokered, with few direct organisation-to-organisation interactions, and network participants typically have limited formal accountability for network-level goals and conformity to rules and procedures is purely voluntary; (3) indirect forms of coordination characterise networks through mutual adjustment, shared norms, trust, and reputation (
Provan and Kenis 2008). Moreover, these network types can have one or more (polycentric) centrality points. However, in special cases, networks can have direct connections among organisations depending on the situation. This study views these formal direct networks with centrality as heterarchy structures since heterarchy is the co-existence of a hierarchy and network system between actors with direct interactions (
Cumming 2016;
Wilson and Hölldobler 1988;
Stephenson 2009). Furthermore, this heterarchy structure can also have one or more central points (
Cumming 2016). By giving the above justification, this study argues that lead organisation-governed networks and network administrative organisation-governed networks fall under segment 6 and, similarly, heterarchy falls under segment 8 with high vertical and horizontal integration and direct vertical and horizontal coordination. The above discussion regarding organisational structure type within collaborative arrangements is graphically presented in
Figure 4.
The study further argues that market structure (segment 1), which hinders coordination among isolated entities, is not suitable for collaborative arrangements and has no vertical and horizontal integration. The self-governance network structure (segment 2) is unsuitable for inter-organisational arrangements in which no centrality or hierarchical features prevail to control or monitor a large number of collaborative members. Therefore, this structure is not suitable for public and collaborative governance arrangements. Hierarchy (segment 3), indirectly integrated hierarchy (segment 5), and a directly integrated hierarchy structure (segment 7) are suitable for creating vertical coordination. However, these structural types are unsuitable for the cross-sector actors’ collaboration beyond the silo boundaries. Among the three other structural types, the hierarchy and supplementary network (segment 4) can facilitate low horizontal integration and high vertical integration and, therefore, is considered to be a structural type that can provide a medium level of collaboration across administrative levels, boundaries, sectors, and actors. The lead agency or NAO-governed network structure (segment 6) and the heterarchy structure (segment 8) can facilitate high vertical and horizontal integration and can, therefore, facilitate high collaboration across administrative levels, boundaries, sectors, and actors. However, since a heterarchy structure can facilitate direct coordination among all collaborative members, a heterarchy structure is considered the ideal structural arrangement to facilitate inter-organisational collaboration.
The framework helps us to subjectively plot the organisational structural arrangements in the quadrants based on the horizontal and vertical integration features they have. The horizontal and vertical integration levels vary through the X and Y axes depending on the intensity of the features determining the vertical and horizontal integration, as described in
Figure 3.
5. Application of the Framework Using Case Examples
In this section, this study intends to demonstrate the use of the proposed framework (
Figure 3) to identify the degree of horizontal and vertical collaboration in three real cases identified from the three literature sources identified in this study, representing the hierarchy (
Gilfillan et al. 2017), the network (
Bowen et al. 2014), and the hierarchy and supplementary network as a form of hybrid of hierarchy and network arrangement (
Lagreid and Rykkja 2015). The type and features of inter-organisational collaborative structures discussed in the cases are assessed using the developed framework in
Figure 3. This framework allows the subjective placing of the cases based on their structural type and nature. Brief descriptions of these cases and the assessment based on the framework are given below.
Case 1: Vietnam climate change adaptation within the health sector in the Vietnamese Mekong Delta (
Figure 5)
The case reported by
Gilfillan et al. (
2017) discusses the Vietnam climate change adaptation within the health sector in the Vietnamese Mekong Delta. Vietnam’s governance arrangement is hierarchical and based on a bureaucratic culture. Therefore, to facilitate collaboration, a steering committee was set up at the regional level, named “the Southwest Steering Committee (SWSC)”, chaired by the deputy prime minister under the central Communist Party. This steering committee assists ministries and provinces in implementing plans and acts as a coordinating agency in the collaboration process. The steering committee is directly connected to the Provincial People’s Committees (PPCs) and has access to the provincial head of line ministries and provincial line departments through the PPC to facilitate cross-level, cross-sectoral, and cross-boundary coordination by linking the provincial level and central government. According to
Gilfillan et al. (
2017), this structure was identified as weak since the SWSC had no authority over the provincial authorities, and the government wanted to maintain a clear separation between the government and the Communist Party; therefore, the SWSC did not have decentralised authority. This made it difficult for the SWSC to gain support to fulfil its official governing role and attract the required funding. As a result, even though the steering committee was a suitable entity to facilitate collaborative cooperation in the Vietnamese Mekong Delta, state-centred top-down hierarchical decision-making still prevails and the sectoral departments in the Provincial People’s Committee are controlled by line ministries from the centre. This condition limits collaborative coordination across levels, boundaries, and sectors.
Gilfillan et al. (
2017) further suggested that it is important to move away from the current hierarchical top-down governance approach and bureaucratic environment to a positive collaboration culture to address climate change adaptation.
This governance arrangement shows the adequate features of the network structure since the steering committee facilitates horizontal integration among various sectors and vertical integration across different administrative levels by connecting the provincial level to the central government. Therefore, this structure can be placed in segment 6. However, as an exemption, case 1 was placed in segment 3 due to failures in governance as follows. The steering committee does not have any authority over provincial authorities and has not been given any decentralised powers. Therefore, the central government still controls the sectoral departments through line ministries through top-down vertical coordination. Hence, the steering committee is not functioning practically and, therefore, a hierarchical governance structure with a top-down approach is more prominent in practice. In addition, no boundary organisations are available to connect the organisations at different administrative levels. Thus, vertical integration is hindered in this structural arrangement since coordination can be seen only at immediate administrative levels and not at all levels. In terms of horizontal connections, this structure failed to facilitate horizontal connections across sectors, actors, or boundaries for the following reasons: (1) there is no coordination among other provincial-level departments, even though cross-administrative coordination is essential in this case; (2) ministries are functioning in silos and no coordination among sectoral ministries takes place; and (3) only government organisations are working on this initiative without the involvement of non-governmental organisations. Additionally, these features limit the heterogeneity of the structure. Therefore, the level of opportunity for horizontal and vertical integration in case 1 is considered low. Hence, case 1 falls within quadrant 1 and is classified as a weak collaborative structure.
Case 2: Governance structure for making decisions in health-related adaptation in Cambodia (
Figure 6)
A study by
Bowen et al. (
2014) investigates the inter-organisational governance structure for making decisions in health-related adaptation in Cambodia. The network structure analysis identified the following features: (1) There is a large number of connections among the key organisations compared to the rest of the organisations in the network, and a number of bridging organisations are available to facilitate links between the key agencies and secondary agencies; (2) Boundary-spanning behaviour is evident in the structure due to the connection across the government and non-government organisations.
According to
Bowen et al. (
2014), network arrangement provides healthy collaboration, although some improvements are considered necessary. This network structure facilitates coordination among state and non-state actors and sectors, and across different administrative levels with the support of bridging organisations. Furthermore, the existence of a high level of involvement of government organisations that are collaborating with other organisations (such as partners, donors, and traditional non-government organisations) was seen as a desirable collaborative feature for health and climate change adaptation activities.
In this network, several non-government organisations such as the World Health Organisation (WHO), the United Nations International Children’s Emergency Fund (UNICEF), the United Nations Development Programme (UNDP), the Asian Development Bank (ADB), and the World Bank act as boundary spanners. For example, in this case, even though the Ministry of Health (MoH) does not have a direct connection with the Ministry of Interior (MoI), UNICEF plays a boundary-spanning role in connecting these two different ministries to promote cross-sectoral collaboration in the network. In addition to high horizontal integration, the connection with various stakeholders who are from various countries and regions creates heterogeneity in the network and leads to innovative decision-making. Hence, it is clear that this network structural arrangement has collaboration among cross-sectors, cross-actors (government and non-government), and cross-administrative boundaries with heterogeneity. Therefore, this structure has high horizontal integration. In terms of vertical integration, this network structure connects organisations from the national level to the local level, such as ministries, national committees, provincial committees, departments, and local NGOs, with the help of boundary spanners. Even though this network structure has centrality towards MoH and UNDP, all the organisations at all levels are connected through NGOs as boundary-spanning organisations. Therefore, this structure allows indirect unified vertical integrations. Therefore, case 2 is placed in segment 6 and is identified as a structure that has a high level of vertical and horizontal collaboration with the support of boundary spanners.
Case 3: Internal security governance arrangement in Norway (
Figure 7)
A study reported by
Lagreid and Rykkja (
2015) discusses the internal security governance arrangement in Norway. Norway has a strong democratic tradition and adopts bureaucracy and a hierarchical decision-making process steered by top management. However, the internal security governance arrangement of Norway adopts both a traditional hierarchy arrangement and a network arrangement. Thus, this structure represents a hierarchy and a supplementary network structure. The Ministry of Justice (MJ) takes the leading agency role within the central government, an intermediate form of traditional hierarchy and network. The Ministry of Justice at the national level is connected to the administrative levels below as a hierarchical structure. Moreover, two additional network organisations have been set up and led by the MJ, such as the Government Emergency Management Council (GEMC) and the Government Emergency Support Unit (GESU). The GEMC is a superior coordinating body consisting of the secretary generals from six ministries and is expected to meet regularly even when there is no crisis. The GESU, a permanent unit within the Ministry of Justice (MJ), assists the affected authorities in a crisis and serves whichever ministry or public authority is involved in a crisis. Both networks can be expanded upon as needed. This hierarchy and supplementary network arrangement has been adopted by the Norwegian government to handle wicked problems in their internal security with satisfactory performance.
In this case, the Ministry of Justice (MJ) at the national level is connected with administrative levels below in a hierarchical structure. This feature facilitates vertical links among the immediate administrative levels, but there are no direct connections with other administrative levels below, resulting in low vertical integration. In this case, there is an additional network arrangement to connect the heads of units from different ministries (e.g., the Government Emergency Management Council and the Government Emergency Support Unit), hence promoting horizontal integration. However, since a top-down approach from the centre to the local level through ministries prevails, there is no collaboration among various administrative boundaries and with various actors such as NGOs or technical organisations. As a result, the level of horizontal integration and the heterogeneity of case 3 is considered low. Therefore, case 3, which represents a hierarchical and supplementary network structure, falls under segment 4 and depicts a medium level of collaboration.
Figure 8 positions the above case studies in a VI/HI chart, which combines vertical integration (VI) and horizontal interaction (HI), using the framework presented in
Figure 3. The placement of the governance arrangement in each case in the chart is based on the entirely subjective judgement of the authors using the criteria established in the framework in
Figure 3. It is important to note that the placement was made using the data available for each study case. The explanation of the rationale for the placement of the cases in a particular quadrant is discussed below.
The analysis of the above three case studies has allowed the researchers to demonstrate the use of the proposed framework (
Figure 3) to determine collaboration levels based on the structural features of an organisation and to understand how various organisational structures are used in a real-world context to achieve different levels of collaboration.
The analysis of the structural characteristics of case 1 is much in line with the characteristics of segment 3 of the framework presented in
Figure 3. As a result, weak horizontal and vertical collaboration was expected, which was confirmed by independent research carried out by
Gilfillan et al. (
2017). Similarly, case 2 displays the characteristics identified in segment 6 of the framework presented in
Figure 3. As a result, strong horizontal and vertical collaboration was expected, which was confirmed by the independent research carried out by
Bowen et al. (
2014). Furthermore, case 3 was placed in segment 4 since it had a hierarchy with a supplementary network with weak vertical integration. Therefore, a medium level of collaboration was expected, which was confirmed by the independent research carried out by
Lagreid and Rykkja (
2015).
The case study analysis confirmed that hierarchical governance arrangements generally hinder horizontal integration and are, therefore, unsuitable for cross-sectoral, cross-administrative boundary collaborations. The pure decentralised network arrangement is not suitable for the situations in which centrality takes place. Furthermore, if it is a pure decentralised network with equal power, the administration or governance of the network is questionable (
Rondelez 2018). Therefore, the hybrid forms of hierarchy and network governance arrangements are suitable for facilitating high collaboration since they are capable of allowing high vertical and horizontal integration among multiple actors with high heterogeneity. Nevertheless, according to studies by
Gilfillan et al. (
2017),
Khayatzadeh-Mahani et al. (
2019), and
Lagreid and Rykkja (
2015), countries that follow bureaucratic cultures can adopt hierarchical and supplementary network governance arrangements for collaboration purposes since these structural forms allow vertical management and horizontal collaboration to a certain extent. Furthermore, the heterarchy structural type is ideal and facilitates collaboration at an optimum level.