影響(xiang)報價改(gai)變要素(su)

  1、供求需聯系：出(chu)產值、消費量、進出(chu)口量，庫存量；

  供(gong)需聯系是影響產品報價的直接要素

  供給量(liang)＝出產值＋進口量(liang)＋庫存(cun)量(liang)，需求量(liang)＝消(xiao)費量(liang)＋出口量(liang)

  當供(gong)給量(liang)(liang)>需(xu)求量(liang)(liang)時，報價跌落；當供(gong)給量(liang)(liang)<需(xu)求量(liang)(liang)時，報價上漲；

  當供給(gei)量與(yu)需求量根本持平時，報價根本保(bao)持不(bu)變。

  2、世界國(guo)內經(jing)濟形勢;

  銅(tong)(tong)(tong)是(shi)重要的工業原材料，其需求量與經(jing)(jing)濟(ji)(ji)形(xing)勢密切相關(guan)。經(jing)(jing)濟(ji)(ji)添(tian)(tian)加(jia)時，銅(tong)(tong)(tong)需求添(tian)(tian)加(jia)然后帶動銅(tong)(tong)(tong)價(jia)(jia)上(shang)升(sheng)(sheng)，經(jing)(jing)濟(ji)(ji)慘淡時，銅(tong)(tong)(tong)需求萎(wei)縮然后促進(jin)銅(tong)(tong)(tong)價(jia)(jia)跌(die)落(luo)。例如(ru)，90時代(dai)初期(qi)，西方 進(jin)入新一輪經(jing)(jing)濟(ji)(ji)疲(pi)軟期(qi)，銅(tong)(tong)(tong)價(jia)(jia)由(you)1989年(nian)(nian)的2969美(mei)元回落(luo)至1993年(nian)(nian)的1995美(mei)元/噸；94年(nian)(nian)開(kai)端，美(mei)國(guo)等西方 經(jing)(jing)濟(ji)(ji)開(kai)端復蘇，對銅(tong)(tong)(tong)的需求有所添(tian)(tian)加(jia)，銅(tong)(tong)(tong)價(jia)(jia)又開(kai)端攀升(sheng)(sheng)；97年(nian)(nian)亞(ya)洲(zhou)(zhou)經(jing)(jing)濟(ji)(ji)危機迸發，整個(ge)亞(ya)洲(zhou)(zhou)區域(yu)(我(wo)國(guo)在外(wai))用銅(tong)(tong)(tong)量急據跌(die)落(luo)，導致(zhi)銅(tong)(tong)(tong)價(jia)(jia)接連跌(die)落(luo)至20年(nian)(nian)來 點(dian)；相反(fan)，99年(nian)(nian)下半年(nian)(nian)亞(ya)洲(zhou)(zhou)區域(yu)經(jing)(jing)濟(ji)(ji)呈現(xian)好(hao)轉(zhuan)，美(mei)國(guo)經(jing)(jing)濟(ji)(ji)持(chi)續(xu)添(tian)(tian)加(jia)，銅(tong)(tong)(tong)價(jia)(jia)又逐漸(jian)上(shang)升(sheng)(sheng)。因此銅(tong)(tong)(tong)價(jia)(jia)與經(jing)(jing)濟(ji)(ji)周期(qi)密切相關(guan)。

  3、進(jin)出口方針、關稅(shui)；

  長期以來因(yin)(yin)為(wei)我國是個銅(tong)(tong)資(zi)源缺乏的(de)用(yong)銅(tong)(tong)大國，因(yin)(yin)此在進(jin)出(chu)(chu)口(kou)方面一向(xiang)采納“寬進(jin)嚴(yan)出(chu)(chu)”的(de)方針，銅(tong)(tong)及銅(tong)(tong)制品的(de)均勻(yun)進(jin)口(kou)稅率為(wei)2％，出(chu)(chu)口(kou)稅則高(gao)達(da)30％。近兩年跟著國內銅(tong)(tong)供求的(de)根(gen)本(ben)平衡， 逐(zhu)漸下降出(chu)(chu)口(kou)關稅，銅(tong)(tong)根(gen)本(ben)能夠自在進(jin)出(chu)(chu)口(kou)。然后(hou)使國內世(shi)界銅(tong)(tong)價(jia)互為(wei)影響。