著者
長友 謙治
出版者
比較経済体制学会
雑誌
比較経済研究 (ISSN:18805647)
巻号頁・発行日
vol.53, no.2, pp.2_23-2_35, 2016 (Released:2016-06-28)
参考文献数
28

ロシアの農業生産は,1990年代の市場経済移行期に劇的に縮小したが,2000年代以降回復が進んだ.回復の中心となった自然条件や地理的条件に恵まれた地域では,農業組織の法人形態の農業生産協同組合から有限責任会社や株式会社への転換と,農業投資の拡大が同時並行的に進んでいた.こうした現象が生じたのは,その背後で,アグロホールディングに代表されるような,企業家による農業組織の所有と経営の集中が進行していたためと考えられる.
著者
長友 謙治
出版者
ロシア・東欧学会
雑誌
ロシア・東欧研究 (ISSN:13486497)
巻号頁・発行日
vol.2014, no.43, pp.135-152, 2014 (Released:2016-09-09)
参考文献数
30

The USSR was one of the main grain importing countries, because their grain production was insufficient for domestic consumption, including livestock feeding. After the collapse of the USSR, Russia’s agricultural production was dramatically curtailed through the 1990s, but in the 2000s, Russia returned to the international grain market as an emerging and one of the main wheat exporting countries. The primary reason for Russia’s transformation from a grain importing to a grain exporting country was its dramatic decrease in feed grain consumption in the 1990s, which was caused by reduced livestock production and the recovery of grain production in the 2000s. Russia’s livestock production recovered substantially in the latter half of the 2000s, but the increase in Russia’s feed grain consumption has been relatively small. It seems meaningful to analyze this phenomenon and to anticipate, to what extent further recovery of Russia’s livestock production will influence its feed grain consumption and grain exporting capacity. This paper attempts this analysis by examining concentrate feed consumption (mostly of grain) in Russian agricultural enterprises by types of livestock products (beef, pork, milk, etc.) and the contribution of two factors (“quantity of livestock production” and “concentrated feed conversion ratio”) to changes in concentrate feed consumption. The results of this analysis reveal two main reasons for the relatively small increase in feed grain consumption after Russia’s livestock production recovery. First, continued stagnating production prevented significant increase in feed consumption in the bovine sector (beef and milk production). Second, the declining concentrated feed conversion ratio curbed the increase of concentrated feed consumption in the poultry and pig sectors. Increasing livestock production in Russia would cause increased feed grain consumption and contribute to a decline in grain export capacity to some extent. However, considering the above-mentioned changes in Russia’s livestock industry, Russia’s reversion to a grain importing country seems unrealistic.
著者
吉井 邦恒 大山 達雄 長谷部 正 勝又 健太郎 長友 謙治
出版者
農林水産省農林水産政策研究所
雑誌
基盤研究(B)
巻号頁・発行日
2012-04-01

地域インデックスタイプの収入保険については、①収量と価格の両方が負の相関をもって変動する状況下では、収量保険に比べて保険金の支払いが少なくなるものの、収量と価格の両方が下落する年には、収入の大幅な低下を緩和すること、②価格が低下傾向にある状況下では、収量と価格の相関関係が小さい地域における支払いが特に大きくなることから、その制度設計に当たっては、収量と価格の相関関係に留意した保険料率の設定が必要であることを明らかにした。