Exploring the influence of channel leadership style on channel commitment in a franchising context

Purpose This paper aims to explore franchisor–franchisee relationships in the context of plural forms. Plural forms implies the co-existence of franchised and non-franchised outlets of a given company. More specifically, the paper examines the impact of franchisors’ leadership styles on franchisees’ relationship commitment when the company franchised outlets co-exist with independent non-franchised outlets. Specifically, this study operationalize the plural forms phenomenon in franchising, using multi-channel complexity as a moderator. The mediating role of relational capital is also examined. Design/methodology/approach Data were collected from 254 franchisees. The hypothesized model was tested using partial least squares structural equation modeling (PLS-SEM). Findings The results indicate that all three – participative, supportive and directive leadership styles of franchisors increase relationship commitment. In a high channel complexity context, a supportive leadership style is the most effective, whereas, in a low channel complexity context, a participative style is the most effective. Relational capital also partially mediated the relationships between leadership styles and relationship commitment. Practical implications Franchisors should follow a participative leadership style when channel complexity is low. However, as they add new channels and the channel complexity increases, franchisors should shift toward a supportive leadership style to maintain existing franchisees’ commitment. In current environments, managers should avoid using directive leadership in favor of the other two leadership styles. Originality/value The present study is the first to examine the influence of channel leadership style on relationship commitment in an environment of multiple channel complexity.

The Effect of Phragmites australis Dieback on Channel Sedimentation in the Mississippi River Delta: A Conceptual Modeling Study

Phragmites australis is a globally distributed wetland plant. At the mouth of the Mississippi River, P. australis on natural levees of the network of distributary channels appears to increase the flow in the deep draft navigation channel, which, in turn, may reduce the sedimentation and benefit the navigation dredging. For several years, P. australis has been dying in the Mississippi River’s Bird’s Foot Delta, which appears to be shortening the distributary channels and increasing the lateral flow from the remaining portions. A conceptual model based on D-FLOW FM was applied to calculate channel sedimentation in a series of idealized deltaic systems to predict the consequences of P. australis dieback and other factors that diminish the delta complexity, such as sea-level rise and subsidence, on sedimentation in the distributary channels. Channel complexity in each system, which was quantified with an index ranging from 0 to 10 that we developed. Model results indicate that sedimentation was insensitive to the channel complexity in simple deltas but was sensitive to the channel complexity in complex deltas, such as the current Mississippi River Delta with extensive P. australis. Channel sedimentation remains stable from 0 until the channel complexity index reaches 6. In more complex deltas, the sedimentation decreases rapidly as the channel complexity increases. The sedimentation is also affected by waves, river discharge, sediment concentration, grain sizes, and bed level. River managers in Louisiana may benefit from new models based on bathymetric data throughout the Bird’s Foot Delta; data on the effects of the P. australis belowground biomass on bank erodibility across a range of current velocities; and data on the effects of P. australis stem density, diameter, and height on the lateral flow across a range of river stages and tidal stages to help them decide how much to respond to Phragmites dieback. Options include increased navigation dredging, increased restoration of the channel complexity via a thin layer of sediment deposition on natural levees and the planting of more salt-tolerant vegetation on natural levees.

The effect of riparian restoration on channel complexity and soil nutrients

Restoration of riparian vegetation may reduce nutrient and sediment contamination of waterways while potentially enhancing stream channel complexity. Accordingly, the present study used a paired-site approach to investigate the effects of mature regrowth riparian vegetation on river channel morphology and soil nutrients (i.e. nitrogen and phosphorus), comparing four sites of degraded (pasture) and reforested reaches. A revised rapid assessment of riparian condition (RARC) was used to validate the site pairings. Riparian soil nutrient and elemental geochemistry were compared between paired sites, along with two parameters of channel width complexity and two for channel slope complexity. The RARC analysis confirmed the validity of the paired site design. The elemental geochemistry results indicated that underlying geology may affect the paired site analyses. Reaches with mature regrowth vegetation had greater channel width complexity but no difference in their riverbed slope complexity. In addition, degraded reaches had higher soil nutrient (i.e. nitrogen and phosphorus) concentrations, potentially indicative of the greater nutrient retention of pasture grass sites compared with mature regrowth forested reaches with less ground cover. Overall, the present study indicates that restoring mature regrowth riparian vegetation may increase river channel width complexity, although it may require canopy management to optimise the nutrient retention potential necessary to maximise the effect of riparian restoration strategies on freshwater environments.