Journal of Agricultural and Resource Economics
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That exchange rates strongly influence agricultural commodity prices is a widely held belief. Observed divergences in price and exchange rate correspondence over time, however, have occasionally brought this conventional wisdom into doubt. We empirically test and find evidence to support hypotheses that key supply-use factors, such as low stocks and policy shifts, intermittently cause greater responsiveness of agricultural commodity prices to exchange rate changes because they give rise to more inelastic market demand. After accounting for these longrun effects, we also find that short-run price responsiveness to exchange rate changes is sometimes greater due to overshooting factors.
A hypothetical choice experiment was conducted to determine consumers’ willingness to pay for three verified production practice attributes (pasture access, antibiotic use, and individual crates/stalls) in smoked ham and ham lunchmeat. These attributes were verified by the USDA Process Verified Program (PVP), a retailer, or the pork industry. Willingness to pay for verified attributes varied across attributes and verifying entity for both products. Consumers were willing to pay the most for attributes verified by the USDA-PVP. No statistical differences, relative to the product price level, were found across products for the same attribute-verifier combination.
An approach to the development of the economically optimal dietary concentration of Paylean, duration of the Paylean feeding, and dietary lysine concentration for finishing hog production is presented. A simulation model describing daily growth of hogs under different Paylean and lysine concentration combinations was adapted for optimizing nutrition and marketing when feed is supplemented with Paylean. Net returns per pig space per day under four alternative payment schemes are maximized based on 10-year average price levels and production costs. Profitability of Paylean is investigated, and management strategies for swine production with Paylean are developed for two representative finishing operations.
Soil phosphorus levels have increased as pork production has become concentrated. Phosphorus-based manure management regulations for land application have been proposed by policy makers. The objective of this study is to determine benefits/costs of adopting two alternatives for reducing phosphorus: synthetic amino acids or phytase. An optimization model is constructed to determine optimal excreted nitrogen and phosphorus from alternative feed ingredients. Results are derived using different manure storage and application systems. While the two alternatives are not least-cost ingredients, they become profitable when producers are constrained by land. An important result is that the net cost of manure is negative.
Regional live cattle prices are decomposed into two components: (a) a trend common to all regional cattle price series and (b) regional deviations or price dynamics around that trend. Tests are developed to determine if market factors are related to the regional price deviations around a common trend. Slaughter volume, distance between a market and the next closest, and forward contract deliveries are significantly related to price deviations from the estimated common trend.
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