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DCE与CBOT黄豆期价关联性及动态走势实证研究(5)

http://www.sina.com.cn 2006年10月13日 00:45 大连商品交易所

  图13 动态预测模型的系数稳定性检验图

   DCE与CBOT黄豆期价关联性及动态走势实证研究(5)

动态预测模型的系数稳定性检验图(来源:大连商品交易所)
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  八、结论

  通过上述分析可知,我们采用协整理论的分析方法具体研究了中国大连黄豆期货价格与CBOT黄豆期货价格等变量的关联性。从单位根检验结果中可以看出,在我们分析的样本期内,我们所选数据的非平稳性是非常显著的。选取的数据均是含有一个单位根的非平稳序列。

  通过所作的Granger因果关系检验结果看到:基于周数据,CBOT黄豆期货价格对大连黄豆期货价格的单向引导作用的概率达到98.7%以上。说明中国大连期货交易所黄豆期货价格受美国CBOT期货价格影响极大。国内黄豆期货价格走势完全受CBOT期货价格引导。连豆期货价格对国内大连与黑龙江黄豆现货价格具有显著的单向引导作用,大连黄豆期货的价格发现作用得到充分的发挥。

  从最终我们得到的协整方程看到:从最终我们得到的协整方程看到:基于周数据,在我们的协整系统内,美国CBOT黄豆期货价格对中国大连黄豆期货价格的弹性是0.13;在我们的协整系统内,对中国大连黄豆期货价格的弹性是-0.48; 在我们的协整系统内,黑龙江黄豆现货价对中国大连黄豆期货价格的弹性是0.13。

  从最终建立的短期动态方程可看到:中国大连黄豆期货价格受其自身滞后1至2周的累积影响,影响较强;中国大连黄豆期货价格受CBOT黄豆期货价格滞后1至2周累积影响,影响稍弱。中国大连黄豆期货价格受美元指数滞后1至2周累积影响,影响稍弱。二者在滞后一天的影响均大于滞后2周的影响。从最终建立的模型各项评价指标来看,该模型具有较好的统计性质,从拟合值及预测值结果看具有较好的拟合及预测精度。因此,该模型对中国大连黄豆期货价格交易风险控制具有较好的参考作用,从而可以及时规避黄豆交易风险,为套期保值者和投资者提供理论与实践的支持。

  参考文献

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  附表:

时间

连豆期价

(元 /吨)

美豆连续期价

(美分 /busl)

欧元兑美元汇率

(美元 /欧元)

美元指数

哈尔滨黄豆现货价格

(元 /吨)

大连黄豆现货价格

(元 /吨)

02-5-10

2057.3

472.9

0.9091

114.5

1840

2080

02-5-17

2061.0

481.5

0.9116

114.2

1984

2080

02-5-24

2062.2

491.4

0.9221

112.7

2036

2096

02-5-31

2099.3

500.8

0.9342

111.7

2040

2100

02-6-7

2114.4

509.8

0.9416

111.1

2060

2120

02-6-14

2103.2

498.4

0.9444

110.9

2076

2136

02-6-21

2093.6

493.1

0.9570

109.6

2076

2116

02-6-28

2076.4

514.6

0.9843

106.8

2020

2100

02-7-5

2132.0

538.7

0.9810

107.0

2032

2100

02-7-12

2158.8

552.0

0.9902

105.9

2060

2112

02-7-19

2099.2

575.8

1.0090

104.5

2060

2120

02-7-26

2088.6

574.4

0.9955

105.8

2096

2132

02-8-2

2095.8

549.3

0.9823

107.0

2200

2196

02-8-9

2101.8

550.2

0.9712

108.1

2268

2204

02-8-16

2143.0

587.2

0.9818

106.9

2300

2224

02-8-23

2198.4

555.1

0.9753

107.6

2340

2320

02-8-30

2182.4

555.2

0.9802

107.1

2340

2350

02-9-6

2183.5

554.7

0.9903

106.1

2340

2350

02-9-13

2190.0

576.3

0.9762

107.5

2340

2350

02-9-20

2206.0

569.3

0.9766

107.7

2254

2350

02-9-27

2198.6

558.8

0.9783

107.7

2008

2200

02-9-30

2158.0

522.4

0.9903

107.0

1957

2100

02-10-11

2156.8

527.6

0.9851

107.3

1943

2060

02-10-18

2174.0

544.7

0.9784

107.9

1972

2060

02-10-25

2201.4

552.9

0.9764

108.1

2020

2104

02-11-1

2227.2

558.4

0.9876

106.8

2088

2152

02-11-8

2270.8

569.5

1.0044

105.4

2152

2216

02-11-15

2276.8

564.9

1.0084

104.8

2120

2200

02-11-22

2338.0

571.2

1.0021

105.7

2164

2224

02-11-29

2376.6

575.8

0.9940

106.5

2200

2280

02-12-6

2457.6

566.9

1.0003

106.0

2356

2366

02-12-13

2451.8

568.3

1.0136

104.9

2380

2384

02-12-20

2449.6

560.7

1.0258

103.6

2400

2412

02-12-27

2514.8

570.8

1.0327

103.1

2424

2456

03-1-3

2582.3

572.3

1.0438

102.4

2420

2460

03-1-10

2683.8

575.1

1.0487

101.9

2436

2460

03-1-17

2522.4

550.5

1.0573

101.1

2472

2460

03-1-24

2509.0

561.6

1.0751

100.0

2390

2444

03-1-29

2508.7

567.4

1.0838

99.4

2400

2460

03-2-14

2563.6

569.2

1.0765

100.1

2420

2460

03-2-21

2614.5

571.9

1.0759

99.9

2420

2460

03-2-28

2657.6

577.3

1.0784

99.7

2440

2464

03-3-7

2578.2

569.0

1.0946

98.5

2460

2476

03-3-14

2643.2

570.4

1.0926

98.5

2396

2468

03-3-21

2695.2

573.0

1.0580

101.0

2434

2480

03-3-28

2706.0

573.6

1.0688

100.7

2454

2494

03-4-4

2711.2

582.1

1.0813

99.8

2510

2540

03-4-11

2746.2

601.2

1.0739

100.5

2500

2550

03-4-18

2768.0

614.5

1.0846

99.5

2500

2550

03-4-25

2727.2

606.2

1.0980

98.7

2552

2606

03-4-30

2762.0

617.7

1.9660

97.8

2570

2620

03-5-16

2752.8

645.2

1.1473

94.7

2590

2620

03-5-23

2736.8

634.8

1.1710

93.3

2590

2620

03-5-30

2672.8

627.0

1.1812

93.3

2576

2604

03-6-6

2643.4

617.7

1.1736

93.5

2538

2580

03-6-13

2690.6

625.6

1.1751

93.0

2530

2580

03-6-20

2675.6

625.3

1.1723

93.1

2530

2580

03-6-27

2660.0

633.7

1.1490

94.5

2520

2560

03-7-4

2676.8

616.0

1.1519

94.4

2520

2560

03-7-11

2689.8

607.7

1.1330

95.5

2520

2560

03-7-18

2631.8

579.9

1.1223

96.6

2516

2560

03-7-25

2592.4

554.6

1.1428

95.8

2500

2560

03-8-1

2397.2

534.4

1.1356

96.1

2500

2560

03-8-8

2415.2

524.6

1.1351

96.1

2500

2560

03-8-15

2448.8

547.7

1.1297

96.3

2500

2560

03-8-22

2500.4

578.8

1.1042

97.9

2512

2560

03-8-29

2495.4

584.6

1.0893

98.0

2520

2560

03-9-5

2496.0

585.3

1.0932

78.6

2520

2564

03-9-12

2516.0

604.6

1.1189

96.6

2530

2580

03-9-19

2597.4

622.4

1.1268

95.9

2564

2628

03-9-26

2654.6

653.7

1.1477

93.8

2580

2630

03-9-30

2749.6

674.1

1.1630

92.8

2580

2630

03-10-10

2844.7

694.4

1.1783

91.7

2497

2700

03-10-17

3035.8

731.2

1.1664

92.2

2716

2806

03-10-24

3155.6

747.0

1.1733

91.8

2880

3086

03-10-31

3273.6

784.5

1.1658

92.0

2936

3150

03-11-7

3201.6

769.4

1.1465

93.5

2932

3170

03-11-14

3057.4

772.7

1.1631

92.2

2842

3130

03-11-21

2912.8

763.6

1.1884

90.8

2858

3090

03-11-28

2861.6

746.0

1.1871

90.9

2860

3058

03-12-5

2978.8

768.4

1.2079

89.6

2860

3028

03-12-12

3018.4

777.8

1.2232

88.7

2860

3020

03-12-19

2945.2

766.0

1.2367

88.2

2880

3100

03-12-26

2934.0

761.5

1.2419

87.8

2900

3100

04-1-2

3030.8

790.3

1.2547

86.9

2900

3100

04-1-9

3046.4

796.3

1.2734

85.6

2912

3100

04-1-16

3100.4

834.7

1.2623

86.3

2924

3100

04-1-30

3030.5

814.2

1.2430

87.0

2940

3100

04-2-6

3039.2

814.6

1.2538

86.8

2956

3100

04-2-13

3125.2

834.2

1.2750

85.6

2960

3100

04-2-20

3191.3

869.6

1.2676

86.1

2960

3100

04-2-27

3327.2

928.0

1.2559

87.1

2996

3132

04-3-5

3402.0

940.6

1.2273

88.5

3100

3352

04-3-12

3364.2

937.3

1.2304

88.6

3232

3402

04-3-19

3417.4

1000.8

1.2277

88.4

3276

3460

04-3-26

3552.0

1034.6

1.2212

88.5

3360

3538

04-4-2

3501.4

1019.8

1.2222

88.1

3532

3644

04-4-8

3533.8

1009.4

1.2088

88.8

3556

3692

04-4-16

3357.6

975.9

1.1988

89.8

3560

3692

04-4-23

3275.6

954.4

1.1892

90.6

3584

3680

04-4-30

3223.6

1002.5

1.1918

90.8

3592

3680

04-5-14

3168.0

984.3

1.1862

91.6

3600

3680

04-5-21

2965.2

885.6

1.1981

90.8

3592

3658

04-5-28

2959.0

851.4

1.2140

89.5

3564

3610

04-6-4

2985.0

839.6

1.2239

88.8

3500

3600

04-6-11

2898.0

848.8

1.2146

89.1

3470

3600

04-6-18

2876.8

872.4

1.2085

89.5

3450

3600

04-6-25

2885.0

907.2

1.2123

89.1

3420

3540

04-7-2

2915.8

857.4

1.2189

88.7

3400

3500

04-7-9

2825.4

815.5

1.2345

87.8

3250

3350

04-7-16

2761.8

758.6

1.2380

87.6

3210

3338

04-7-23

2713.2

693.4

1.2269

88.2

3150

3330

04-7-30

2667.0

637.0

1.2061

89.7

3150

3330

04-8-6

2630.2

571.6

1.2093

89.4

3150

3330

04-8-13

2596.8

578.1

1.2269

88.5

3150

3330

04-8-20

2615.8

591.9

1.2343

87.9

3150

3330

04-8-27

2687.0

616.6

1.2085

89.4

3120

3250

04-9-3

2749.0

624.9

1.2127

89.2

2980

3250

04-9-10

2748.2

586.6

1.2160

89.0

2900

3250

04-9-17

2719.8

562.4

1.2208

88.8

2780

3250

04-9-24

2674.8

537.2

1.2257

88.4

2748

3230

04-9-30

2676.0

531.9

1.2360

87.8

2830

3150

04-10-8

2674.0

528.4

1.2412

87.5

2800

3050

04-10-15

2634.8

522.0

1.2380

87.6

2716

2910

04-10-22

2611.4

526.5

1.2573

86.4

2568

2620

04-10-29

2639.2

533.5

1.2759

85.2

2532

2550

04-11-5

2627.0

515.2

1.2809

84.7

2568

2550

04-11-12

2637.2

517.1

1.2919

84.1

2600

2550

04-11-19

2633.0

546.9

1.2985

83.6

2584

2566

04-11-26

2659.2

554.3

1.3165

82.5

2580

2560

04-12-3

2591.2

529.7

1.3317

81.6

2580

2600

04-12-10

2582.8

528.0

1.3350

81.9

2580

2600

04-12-17

2636.2

547.3

1.3307

82.1

2580

2600

04-12-24

2640.6

549.1

1.3433

81.6

2560

2600

04-12-31

2618.2

549.9

1.3599

80.8

2560

2720

05-1-7

2587.0

532.8

1.3196

83.0

2560

2720

05-1-14

2609.8

536.2

1.3157

82.8

2568

2730

05-1-21

2586.3

517.7

1.3000

83.5

2560

2730

05-1-28

2575.4

519.7

1.3033

83.5

2560

2730

05-2-4

2533.8

505.6

1.2992

83.8

2540

2730

05-2-18

2598.0

546.3

1.3061

83.6

2540

2730

05-2-25

2678.3

580.0

1.3229

82.7

2542

2730

05-3-4

2832.6

619.2

1.3182

82.8

2580

2758

05-3-11

2939.2

634.5

1.3369

81.9

2740

2800

05-3-18

3149.2

666.2

1.3352

81.9

2768

2830

05-3-24

3058.3

626.4

1.3042

83.6

2760

2850

05-4-1

3093.6

626.4

1.2921

84.3

2760

2850

05-4-8

3071.8

618.1

1.2885

84.7

2760

2850

05-4-15

3042.2

618.1

1.2908

84.5

2760

2850

05-4-22

3063.2

634.6

1.3057

83.7

2760

2850

05-4-29

3087.8

634.1

1.2932

84.1

2760

2850

05-5-13

3067.2

628.1

1.2765

85.1

2744

2850

05-5-20

3025.8

627.7

1.2622

86.2

2740

2850

05-5-27

3099.0

659.1

1.2570

86.5

2724

2850

05-6-3

3105.3

677.3

1.2254

88.0

2740

2850

05-6-10

3105.4

671.8

1.2222

88.0

2740

2850

05-6-17

3103.6

699.4

1.2125

88.6

2740

2850

05-6-24

3184.6

736.3

1.2114

88.6

2760

2850

05-7-1

3008.4

671.9

1.2070

89.2

2778

2850

05-7-8

3051.3

694.7

1.1932

90.4

2770

2850

05-7-15

3047.8

708.8

1.2103

89.4

2770

2850

05-7-22

2961.0

684.5

1.2093

89.7

2770

2850

05-7-29

2897.4

675.0

1.2084

89.6

2770

2850

05-8-5

2861.4

672.7

1.2288

88.3

2762

2850

05-8-12

2800.0

647.2

1.2399

87.5

2750

2850

05-8-19

2702.8

610.2

1.2266

88.0

2746

2850

05-8-26

2677.4

599.6

1.2260

87.9

2740

2850

05-9-2

2688.2

592.9

1.2363

87.4

2740

2850

05-9-9

2711.4

595.5

1.2444

86.7

2740

2850

05-9-16

2695.0

578.1

1.2240

87.8

2728

2850

05-9-23

2710.8

576.0

1.2134

88.6

2696

2850

05-9-30

2685.2

564.3

1.2031

89.4

2520

2810

05-10-14

2703.6

577.1

1.2040

89.6

2500

2550

05-10-21

2710.2

584.5

1.1991

90.0

2500

2550

05-10-28

2644.8

572.1

1.2070

89.5

2460

2550

05-11-4

2634.6

576.7

1.1966

90.3

2442

2550

05-11-11

2642.2

583.1

1.1760

91.6

2440

2550

05-11-18

2697.4

582.7

1.1715

92.1

2440

2550

05-11-25

2621.8

570.8

1.1747

91.8

2440

2550

05-12-2

2546.2

558.9

1.1778

91.6

2350

2500

05-12-9

2579.6

566.6

1.1792

91.4

2350

2470

05-12-16

2679.4

590.5

1.1974

90.1

2350

2450

05-12-23

2737.0

608.9

1.1888

90.6

2350

2450

05-12-30

2732.0

605.4

1.1832

91.1

2350

2450

06-1-9

2724.3

592.8

1.1961

90.2

2350

2450

06-1-13

2716.5

580.2

1.2089

89.2

2350

2450

06-1-20

2667.8

567.7

1.2104

89.2

2360

2450

06-1-27

2699.8

574.8

1.2230

88.5

2400

2450

06-2-10

2740.0

581.7

1.1953

90.4

2400

2450

06-2-17

2740.0

589.3

1.1901

90.6

2408

2510

06-2-24

2754.3

577.9

1.1905

90.6

2420

2600

06-3-3

2749.4

595.1

1.1954

90.0

2420

2600

06-3-10

2759.6

590.5

1.1923

90.6

2420

2600

06-3-17

2748.4

581.8

1.2074

89.7

2420

2600

06-3-24

2720.2

574.8

1.2067

89.8

2404

2600

06-3-31

2727.0

580.4

1.2063

89.9

2368

2600

06-4-7

2671.8

561.2

1.2206

89.2

2360

2600

06-4-13

2636.0

560.3

1.2113

89.5

2360

2600

06-4-21

2658.6

575.0

1.2320

88.2

2348

2564

06-4-28

2685.0

592.6

1.2490

87.0

2300

2420

06-5-12

2800.6

607.2

1.2805

84.5

2316

2420

06-5-19

2822.0

599.2

1.2799

84.6

2340

2420

06-5-26

2808.0

583.6

1.2788

84.8

2340

2420

06-6-2

2822.5

589.6

1.2850

84.5

2324

2420

06-6-9

2860.0

593.4

1.2769

85.1

2300

2420

06-6-16

2836.2

595.5

1.2600

86.1

2300

2420

06-6-23

2806.4

604.8

1.2583

86.3

2288

2420

06-6-30

2784.2

607.0

1.2629

86.2

2264

2420

06-7-7

2804.3

628.3

1.2780

85.3

2256

2420

06-7-14

2681.0

627.7

1.2709

85.6

2236

2420

  大连商品交易所 期货学院学员 陈佳蕴

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