Table 6 Elasticities of cooking effort (E) with respect to usage intensity of convenience food (F)

Busy

0.672

0.559

0.492

0.607

0.712

0.613

0.631

0.251

1.313

0.661

0.617

0.603

0.415

0.411

0.684

Not busy

0.859

0.427

0.374

0.466

0.501

0.391

0.397

0.483

0.588

0.684

0.467

0.422

0.332

0.328

0.522

Cooking is troublesome

0.708

0.554

0.478

0.645

0.810

0.629

0.521

0.251

1.169

0.679

0.633

0.553

0.410

0.374

0.706

Cooking is not troublesome

0.683

0.486

0.433

0.498

0.569

0.456

0.506

0.483

0.755

0.646

0.547

0.507

0.361

0.372

0.582

I like eating out

0.726

0.507

0.428

0.551

0.715

0.554

0.532

0.312

0.717

0.705

0.596

0.560

0.376

0.370

0.663

I do not like eating out

0.634

0.525

0.486

0.585

0.582

0.519

0.478

0.494

1.395

0.609

0.576

0.496

0.366

0.376

0.618

Buying food is troublesome

0.752

0.568

0.421

0.646

0.881

0.584

0.441

0.406

1.341

0.755

0.646

0.458

0.437

0.349

0.705

Buying food is not troublesome

0.670

0.497

0.463

0.529

0.604

0.510

0.526

0.441

0.846

0.629

0.563

0.567

0.362

0.379

0.616

Buying food with emphasis on price

0.674

0.530

0.416

0.626

0.640

0.577

0.535

0.251

0.735

0.629

0.568

0.547

0.418

0.381

0.636

Buying food without emphasis on price

0.707

0.498

0.497

0.519

0.684

0.510

0.493

0.483

1.739

0.728

0.606

0.516

0.349

0.367

0.650

Flexible with regard to cooking

0.788

0.540

0.414

0.670

0.764

0.554

0.603

0.251

1.205

0.707

0.615

0.569

0.368

0.361

0.709

Not flexible with regard to cooking

0.619

0.491

0.499

0.476

0.571

0.527

0.472

0.483

0.856

0.604

0.557

0.507

0.374

0.380

0.582

High interest in health

0.708

0.479

0.386

0.546

0.641

0.512

0.524

0.312

1.007

0.681

0.603

0.541

0.357

0.361

0.651

Low interest in health

0.683

0.555

0.531

0.584

0.679

0.580

0.494

0.494

1.053

0.657

0.574

0.517

0.438

0.399

0.637

Prefer luxury foods

0.639

0.490

0.444

0.482

0.653

0.545

0.461

0.483

0.969

0.671

0.542

0.546

0.342

0.367

0.606

Not prefer luxury foods

0.782

0.540

0.459

0.647

0.667

0.529

0.728

0.251

1.068

0.661

0.643

0.514

0.422

0.381

0.675

Make plan and cook

0.468

0.430

0.425

0.506

0.533

0.473

0.403

0.383

0.651

0.585

0.511

0.466

0.328

0.320

0.565

Not make plan and cook

0.748

0.603

0.476

0.611

0.729

0.612

0.646

0.482

1.299

0.713

0.646

0.591

0.410

0.428

0.698

Resistance to purchase cooked food

0.705

0.489

0.450

0.527

0.598

0.499

0.490

0.483

0.763

0.602

0.575

0.530

0.333

0.355

0.601

No resistance to purchase cooked food

0.684

0.613

0.463

0.649

0.807

0.671

0.649

0.251

2.436

0.841

0.611

0.526

0.498

0.425

0.751

Emphasis on the number of foodstuffs

0.676

0.477

0.377

0.544

0.605

0.474

0.476

0.411

0.952

0.618

0.563

0.481

0.357

0.347

0.609

No emphasis on the number of foodstuffs

0.761

0.622

0.643

0.616

0.817

0.662

0.624

1.159

0.762

0.624

0.643

0.485

0.512

0.704

High interest in diet

0.663

0.525

0.388

0.548

0.642

0.571

0.510

0.406

0.653

0.672

0.603

0.556

0.368

0.351

0.641

Low interest in diet

0.745

0.503

0.521

0.583

0.687

0.507

0.515

0.441

1.604

0.658

0.575

0.503

0.378

0.384

0.645

Prefer natural foodstuffs

0.630

0.472

0.429

0.501

0.575

0.504

0.488

0.361

0.596

0.613

0.582

0.536

0.347

0.339

0.604

Not prefer natural foodstuffs

0.845

0.576

0.483

0.642

0.779

0.599

0.627

0.484

1.336

0.714

0.592

0.518

0.496

0.434

0.687

Emphasis on the number of dishes

0.664

0.451

0.380

0.487

0.532

0.514

0.465

0.483

0.672

0.670

0.535

0.467

0.339

0.339

0.597

No emphasis on the number of dishes

0.724

0.581

0.570

0.624

0.827

0.559

0.593

0.251

1.378

0.661

0.617

0.613

0.495

0.474

0.676

I like cooking

0.606

0.491

0.383

0.489

0.593

0.535

0.471

0.411

0.775

0.559

0.592

0.516

0.352

0.359

0.592

I do not like cooking

0.794

0.540

0.551

0.652

0.733

0.540

0.571

1.434

0.736

0.583

0.543

0.454

0.404

0.686

Cook on a case-by-case basis

0.698

0.528

0.414

0.613

0.615

0.589

0.558

0.393

0.761

0.701

0.596

0.539

0.396

0.386

0.660

Not cook on a case-by-case basis

0.693

0.499

0.522

0.519

0.737

0.477

0.454

0.526

1.396

0.625

0.575

0.515

0.333

0.349

0.623