In the light of institutional reforms to British Columbia's forestry sector
, this study investigates forest companies' decisions to contract out silvi
cultural activities or to perform them in-house, A model is developed to te
st the relationship between a firm's choice of contractual forms and (a) th
e attributes of the activity (e.g., specificity of technical skills and phy
sical assets, frequency of operations, and uncertainty in controlling perfo
rmance quality) and (b) characteristics of the firm (e.g,, company size). D
ata from a survey of forest companies in the Province are used to test seve
ral hypotheses, The empirical results confirm the transaction cost logic th
at silvicultural activities performed in-house are likely those that are co
mplex to manage, have a low degree of seasonality, require high levels of h
uman skills, and involve highly specialized physical assets.