Network metrics

What holds the region together

The figures below are computed on this dataset and nothing else. Degree is the number of edges attached to a node, every edge type weighted equally and parallel edges counted separately; distinct is the number of different neighbors. Betweenness is the share of shortest paths between all other pairs that pass through the node, on the simple undirected graph. Land and lineage betweenness repeats the calculation on the subgraph of founded, member, land movement, subsidiary, precursor, related venture and built relations. Hub region nodes are excluded. The highest betweenness node in this dataset is Florida Power & Light (0.331), because the announced and operating solar centers all connect through it; Consolidated Citrus LP (rank 2) and Turner Foods (rank 3) follow on the citrus ownership chain, and Arcadia is the highest ranked town (rank 5). Network position describes the documented edges in this map, not acreage, sales or importance; the land figures are the module's, not the network's.

Rank	Node	Kind	Layer	Degree	Distinct	Betweenness	Outside endpoint share
1	Florida Power & Light	business	Energy and land conversion	46	46	0.331	7%
2	Consolidated Citrus LP	business	Citrus	3	3	0.309	100%
3	Turner Foods	business	Citrus	2	2	0.305	100%
4	Peace River Citrus Products	business	Processing, packing, cooperatives and markets	4	4	0.226	75%
5	Arcadia	town	Towns and cities	9	9	0.219	22%
6	Coca-Cola and Minute Maid	business	Outside the Heartland	4	4	0.210	75%
7	Belle Glade	town	Towns and cities	11	11	0.163	9%
8	Florida Southern Railway	organization	Research, extension and industry institutions	6	6	0.150	17%
9	ACL Haines City Branch	organization	Research, extension and industry institutions	7	7	0.133	14%
10	King Ranch Florida farming	business	Vegetables, melons and row crops	3	3	0.127	67%
11	King Ranch	business	Outside the Heartland	3	3	0.127	67%
12	Okeechobee	town	Towns and cities	10	10	0.117	0%
13	Lykes Bros Inc	business	Cattle and ranching	11	11	0.115	45%
14	Florida Crystals Corporation	business	Sugar	11	11	0.115	9%
15	Sugar Cane Growers Cooperative of Florida	organization	Sugar	9	9	0.107	11%
16	ASR Group	business	Processing, packing, cooperatives and markets	3	3	0.105	0%
17	U.S. Sugar Corporation	business	Sugar	12	12	0.090	25%
18	Lake Placid	town	Towns and cities	8	8	0.089	0%
19	Atlantic Coast Line Railroad	business	Outside the Heartland	3	3	0.076	33%
20	South Florida Water Management District	civic	Research, extension and industry institutions	8	8	0.069	0%

Land and lineage network only

Restricting the graph to land, capital and lineage relations changes the ranking: Lake Placid (0.127), ACL Haines City Branch and A. Duda & Sons carry the most bridges, because towns, railroads and family companies connect through founded, member and land movement relations while the agencies connect through programs and permits.

Rank	Node	Kind	Layer	Land and lineage betweenness
1	Lake Placid	town	Towns and cities	0.127
2	ACL Haines City Branch	organization	Research, extension and industry institutions	0.122
3	A. Duda & Sons	business	Vegetables, melons and row crops	0.118
4	Belle Glade	town	Towns and cities	0.112
5	Duda Sod	business	Specialty crops	0.100
6	Atlantic Coast Line Railroad	business	Outside the Heartland	0.088
7	U.S. Sugar Corporation	business	Sugar	0.082
8	Florida Southern Railway	organization	Research, extension and industry institutions	0.076
9	Citrus World, Florida's Natural Growers	organization	Processing, packing, cooperatives and markets	0.065
10	Sugar Cane Growers Cooperative of Florida	organization	Sugar	0.056
11	South Florida Water Management District	civic	Research, extension and industry institutions	0.051
12	Everglades Drainage District	civic	Research, extension and industry institutions	0.046
13	Florida Power & Light	business	Energy and land conversion	0.043
14	Lykes Bros Inc	business	Cattle and ranching	0.040
15	Wauchula	town	Towns and cities	0.039

The outside endpoint share is the share of endpoints attached to nodes inside the region whose opposite endpoint is in an outside hub. Counting only nodes inside the region, 137 of 489 endpoints, 28.0 percent, have their opposite endpoint in an outside hub. Among the industry lanes, energy and land conversion carries the highest outside endpoint share (48.3 percent), and among the districts the shares run from The Ridge at 17.4 percent, Peace River valley at 44.2 percent, Okeechobee at 43.4 percent, The Glades at 22.8 percent. It measures cross boundary structure in the documented graph, not trade volume, money flow, acreage, or the number of unique relationships; it is computed on this dataset and never adjusted.

Figure 4. The outside endpoint share by lane, with the region total. Computed on the dataset; the towns lane is low because towns connect mostly to their own operations and institutions, and the energy lane is pulled outward by the utility's Juno Beach seat.

District	Outside endpoint count	All region endpoint count	Outside endpoint share
The Ridge	19	109	17.4%
Peace River valley	42	95	44.2%
Okeechobee	23	53	43.4%
The Glades	53	232	22.8%

An endpoint is one end of one edge; parallel relationships count separately. A region endpoint to Tampa counts the same as one to Washington. The figure is reported because the map's thesis includes how much of the region's documented structure reaches firms, regulators, processors and buyers outside the region.

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