Lc. Irland, PERSPECTIVES ON THE CHANGING ECONOMIC-STRUCTURE OF THE NORTH-AMERICANSOFTWOOD LUMBER INDUSTRY, Forest products journal, 45(6), 1995, pp. 53-60
The U.S. softwood lumber industry displays evidence of competitive str
ucture, and lumber prices display variability that is characteristic o
f decentralized, competitive markets. Following a period of increasing
seller concentration after 1947, the industry experienced essentially
no increase in concentration after 1970. Also, there was significant
turnover in the ranking of the top 20 producers after 1972. When the C
anadian and U.S. softwood lumber industries are analyzed together, con
centration ratios are lower than for the United States separately. Con
centration in the lumber industry is well below the level considered b
y economists to endow leading firms with the ability to control prices
.